--- title: "How to vet a reliable custom manufacturer for copper fittings in consumer electronics?" description: "For consumer electronics product development teams sourcing custom copper fittings, unclear supplier capability validation and unbalanced cost-quality tradeoffs often delay new product launches. Structured manufacturing capability audits, cost breakdown analysis, and milestone-based risk control help identify reliable partners and stabilize production quality." url: "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html" language: "en" type: "Q&A" category: "Custom Manufacturing Q&A" datePublished: "2026-10-07" dateModified: "2026-10-07" brand: "OK TOOL" manufacturer: "OK TOOL" answerCount: 8 --- # How to vet a reliable custom manufacturer for copper fittings in consumer electronics? ## Question I’m a product development manager at a mid-sized consumer electronics accessories brand, and I’m currently pushing a new OEM sample project for premium wireless charging stands. We need three variants of custom copper contact fittings for the internal charging module, with an initial annual volume of 12,000 units expected to ramp up 2x in the second year if the line performs well. Our last copper fitting supplier was a disaster: 18% of the first batch had dimensional tolerance deviations that caused assembly jams on our production line, surface oxidation appeared on 12% of test units after three months of accelerated aging testing, and their first sample delivery was 14 days late because they couldn’t adjust the tooling quickly when we tweaked the contact pin spacing by 0.2mm during prototype iteration. I’m now screening 6 potential custom copper fitting manufacturers, but I’m struggling to prioritize evaluation criteria beyond quoted unit price. I need to understand how to reliably assess if a factory can deliver consumer electronics-grade copper parts, how to validate their core capabilities before committing to a paid sample order, and what red flags to watch for in initial outreach to avoid wasting 2-3 weeks on unqualified partners. ## Answers ### Answer 1 — Best Answer For consumer electronics-grade custom copper fittings, the first step is to align on non-negotiable baseline requirements before comparing any supplier quotes. For contact fittings used in wireless charging stands, critical specs typically include dimensional tolerance of ±0.02mm for mating surfaces, surface roughness of Ra 0.8 or lower to reduce wear and oxidation risk, and full compliance with RoHS and REACH regulations for electronic components. Any supplier that cannot explicitly confirm alignment with these specs upfront can be filtered out immediately, as they likely lack experience with consumer electronics precision component requirements. When evaluating cost and lead time, avoid comparing unit price in isolation, as this is the most common cause of post-order quality and delivery issues. A transparent quote for custom copper fittings should break down costs into five distinct categories: one-time tooling/NRE fees, raw material cost, processing cost, secondary finishing cost (passivation, plating, deburring), and final inspection cost. Pay close attention to raw material pricing clauses: copper prices have historically fluctuated by 8-12% quarter over quarter, so reliable suppliers will offer a price adjustment trigger for raw material changes exceeding 5% over the quote validity period, rather than locking in a fixed price that forces them to cut material corners later. For lead times, standard benchmarks for this type of part are 7-10 working days for first samples with new tooling, and 15-20 working days for mass production of 12,000 units after sample sign-off. Quotes that come in 20% below the market average or promise sample delivery in under 5 working days for tooled parts almost always indicate skipped inspection steps, lower-grade copper stock, or outsourced production that adds hidden risk. To validate supplier reliability before committing to a full project, focus on three verifiable checks. **First, request dimensional inspection reports for 3 random pieces of a similar copper contact fitting the supplier has produced in the last 6 months**, with CMM or micrometer data for all critical dimensions. This confirms their actual process capability (Cpk should be ≥1.33 for high-volume electronic parts) rather than just advertised capabilities. **Second, ask for their raw material incoming inspection protocol and oxidation resistance test data**: for consumer electronics use, they should conduct material composition testing for every batch of copper stock, and provide 48-hour salt spray test results for passivated or plated parts to validate long-term corrosion resistance. **Third, confirm their in-house tooling modification capacity and design change turnaround time**: for prototype phase adjustments like a 0.2mm pin spacing change, a factory with in-house tooling shops can complete revisions in 2-3 working days, while outsourced tooling support adds 3-5 days of delay per change. For final supplier selection, narrow down to 2-3 candidates that pass all initial checks, place a small paid sample order for 3-5 pieces per variant, and use the sample delivery timeline, inspection report accuracy, and responsiveness to minor design tweaks as real-world validation of their performance. For long-term cooperation, also confirm their capacity ramp-up plan: can they scale to 24,000 units per year without extending lead times, and do they have secondary raw material suppliers to mitigate disruption risks from copper supply chain volatility? **status:** accepted **Author:** Michael Wu **Date:** 2026-10-07 ### Answer 2 When onboarding a new custom copper fitting supplier, set clear, documented milestone requirements before placing any order to avoid timeline creep and misaligned expectations. Start with a written sample sign-off checklist that includes not just dimensional and appearance specs, but also functional test criteria (like contact resistance for charging fittings) and packaging requirements, so there is no ambiguity about what counts as an acceptable sample. For the prototype phase, agree on a fixed number of included design iterations and the turnaround time for each iteration upfront, with clear consequences for delays—for example, a 10% discount on the sample fee for each day of delay beyond the agreed timeline. Before moving from prototype to mass production, require a formal production transfer sign-off that confirms the supplier has frozen the production process, trained line workers on the part’s critical specs, and completed a 100-piece pilot run with zero critical defects. Also, confirm they have a dedicated point of contact for your project who can respond to inquiries within 8 working hours, rather than a general sales contact who has to relay messages to the production floor. **status:** suggested **Author:** Kevin Liu **Date:** 2026-10-07 ### Answer 3 If your copper fittings require plastic overmolding for insulation or mounting purposes, pay close attention to the supplier’s overmolding process control capabilities, as poor adhesion or dimensional shift between the copper insert and plastic is a common hidden defect that only shows up during assembly or field use. Ask the supplier to share their process parameter window for similar copper insert overmolding projects, including melt temperature, injection pressure, holding time, and insert preheating temperature. A supplier with a wide, well-documented process window is far less likely to have batch-to-batch consistency issues than one that relies on manual adjustment per run. Common defects to watch for include insert misalignment (caused by loose fixture design), plastic flash around the copper contact area (caused by incorrect clamping force), and poor bond strength (caused by insufficient insert preheating). Request cross-section images of sample overmolded parts to verify there are no gaps between the copper and plastic, and ask for pull-out force test data to confirm the bond meets your assembly requirements. **status:** suggested **Author:** Sophia Wang **Date:** 2026-10-07 ### Answer 4 When evaluating copper fitting samples, don’t limit testing to dimensional and material specs—validate performance against real-world end-use conditions to catch issues that would only appear after the product reaches customers. For wireless charging contact fittings, key functional tests include contact resistance measurement (should stay below 5mΩ across 10,000 insertion cycles), temperature rise testing under full charging load (should not exceed 15°C above ambient), and compatibility with your existing housing and PCB assembly. Ask the supplier if they can conduct pre-assembly testing with your provided mating components (like the charging coil or housing) to confirm the fittings fit correctly without forcing, which reduces assembly line rework rates. Also, consider field performance factors: if your product will be used in high-humidity regions, ask for 96-hour constant humidity test data to confirm the copper fittings don’t oxidize to the point of increasing contact resistance. For products that undergo frequent plugging and unplugging, request wear test data to ensure the contact surface maintains its finish and conductivity over the product’s 2-year expected lifespan. **status:** suggested **Author:** Jason Zhou **Date:** 2026-10-07 ### Answer 5 To assess long-term production consistency and scalability, look into the supplier’s production line setup for custom copper fittings, especially their level of automation for high-volume runs. For copper contact fittings, key automated processes to look for include automated feeding for stamping or CNC turning, in-line dimensional inspection with vision systems, and automated packaging that reduces manual handling damage. A supplier with 70% or higher automation for critical processing steps will have lower per-unit labor costs, more consistent dimensional accuracy, and faster capacity ramp-up than a supplier that relies mostly on manual operation. Ask for the standard cycle time per part for each production step, and calculate the theoretical daily output to confirm they can meet your volume requirements without running overtime, which often leads to quality lapses. Also, check if they have dedicated production lines for electronic-grade copper parts, or if your parts will be run on the same lines as general hardware parts, which increases the risk of cross-contamination or mixed batches. **status:** suggested **Author:** Rachel Huang **Date:** 2026-10-07 ### Answer 6 Early DFM (Design for Manufacturing) review with the supplier’s tooling team can prevent 80% of common quality and cost issues before tooling is even cut. For copper contact fittings produced via stamping, ask the supplier to review your design for features that increase tooling wear or cause dimensional inconsistency—for example, sharp internal corners that cause stress concentration in the copper, or pin spacing that is too narrow for standard stamping tolerances. For overmolded parts, gate location is a critical tradeoff: gates placed too close to the copper contact surface can cause flash or material buildup that interferes with conductivity, while gates placed on the plastic mounting side may require additional post-processing to remove. A good tooling design will place gates in non-functional areas of the plastic, and use precision insert fixtures to hold the copper fitting firmly in place during injection to prevent misalignment. Request a DFM report with clear recommendations for design tweaks that reduce tooling cost, extend tool life, and improve part quality, rather than a supplier that accepts your design as-is without any feedback. **status:** suggested **Author:** David Zhang **Date:** 2026-10-07 ### Answer 7 Tooling quality is the foundation of long-term part consistency for custom copper fittings, so it’s worth verifying the supplier’s tooling construction and maintenance practices before committing to high-volume production. For stamping dies used for copper contact fittings, ask about the steel grade used for the die core: SKD11 or DC53 tool steel with heat treatment to HRC 58-62 is standard for high-volume runs, and will deliver a tool life of 500,000 to 1 million strokes, while lower-grade carbon steel dies will wear out faster and cause dimensional drift after 100,000 strokes. For overmolding molds, confirm the cavity machining tolerance is ±0.005mm or tighter, to ensure the copper insert fits snugly without shifting during injection. Also, ask about the supplier’s preventive tooling maintenance schedule: reliable suppliers perform inspections and cleaning every 50,000 strokes for stamping dies, and every 10,000 shots for injection molds, rather than only repairing tools when they break. Request a written tooling warranty that covers defects in materials or workmanship for at least 1 year, and clarifies who is responsible for tooling modification costs if design changes are needed during the prototype phase. **status:** suggested **Author:** Linda Xu **Date:** 2026-10-07 ### Answer 8 For consumer electronics copper fittings sold in global markets, confirm the supplier can provide all required compliance documentation and testing support to avoid costly market entry delays. At minimum, all copper fittings and any associated overmolded plastic must meet RoHS 2.0 and REACH SVHC requirements for the EU market, and California Prop 65 requirements for the US market, with full material declaration (MD) and test reports from accredited third-party labs like SGS or Intertek. For contact fittings used in charging devices, you may also need UL 94 flame rating documentation for any plastic components, and IEC 60068-2-11 test reports for salt spray corrosion resistance. Ask the supplier if they can provide batch-specific test reports for each mass production shipment, rather than just a single generic report from 2 years ago, as material batches can vary. Also, confirm their documentation system can provide traceability from the raw copper lot number all the way to the finished part shipment, which is required for most major consumer electronics brand audits and for recalling specific batches if a quality issue is discovered later. **status:** suggested **Author:** Daniel Yang **Date:** 2026-10-07 ## Related Resources - [Custom Manufacturing Q&A](https://www.jaterson.com/qa/oem-odm/) - [Products](https://www.jaterson.com/products/) - [Capabilities](https://www.jaterson.com/capabilities/) - [Custom Manufacturing](https://www.jaterson.com/custom-manufacturing/) - [Manufacturing Guides](https://www.jaterson.com/manufacturing/) - [Buying Guides](https://www.jaterson.com/buying/) - [Manufacturing Knowledge Base](https://www.jaterson.com/knowledge/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": "How to vet a reliable custom manufacturer for copper fittings in consumer electronics?", "text": "I’m a product development manager at a mid-sized consumer electronics accessories brand, and I’m currently pushing a new OEM sample project for premium wireless charging stands. We need three variants of custom copper contact fittings for the internal charging module, with an initial annual volume of 12,000 units expected to ramp up 2x in the second year if the line performs well. Our last copper fitting supplier was a disaster: 18% of the first batch had dimensional tolerance deviations that caused assembly jams on our production line, surface oxidation appeared on 12% of test units after three months of accelerated aging testing, and their first sample delivery was 14 days late because they couldn’t adjust the tooling quickly when we tweaked the contact pin spacing by 0.2mm during prototype iteration. I’m now screening 6 potential custom copper fitting manufacturers, but I’m struggling to prioritize evaluation criteria beyond quoted unit price. I need to understand how to reliably assess if a factory can deliver consumer electronics-grade copper parts, how to validate their core capabilities before committing to a paid sample order, and what red flags to watch for in initial outreach to avoid wasting 2-3 weeks on unqualified partners.", "answerCount": 8, "upvoteCount": 5, "datePublished": "2026-10-07T02:32:00Z", "dateModified": "2026-10-07T02:38:33Z", "author": { "@type": "Person", "name": "Anonymous", "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "For consumer electronics-grade custom copper fittings, the first step is to align on non-negotiable baseline requirements before comparing any supplier quotes. For contact fittings used in wireless charging stands, critical specs typically include dimensional tolerance of ±0.02mm for mating surfaces, surface roughness of Ra 0.8 or lower to reduce wear and oxidation risk, and full compliance with RoHS and REACH regulations for electronic components. Any supplier that cannot explicitly confirm alignment with these specs upfront can be filtered out immediately, as they likely lack experience with consumer electronics precision component requirements. When evaluating cost and lead time, avoid comparing unit price in isolation, as this is the most common cause of post-order quality and delivery issues. A transparent quote for custom copper fittings should break down costs into five distinct categories: one-time tooling/NRE fees, raw material cost, processing cost, secondary finishing cost (passivation, plating, deburring), and final inspection cost. Pay close attention to raw material pricing clauses: copper prices have historically fluctuated by 8-12% quarter over quarter, so reliable suppliers will offer a price adjustment trigger for raw material changes exceeding 5% over the quote validity period, rather than locking in a fixed price that forces them to cut material corners later. For lead times, standard benchmarks for this type of part are 7-10 working days for first samples with new tooling, and 15-20 working days for mass production of 12,000 units after sample sign-off. Quotes that come in 20% below the market average or promise sample delivery in under 5 working days for tooled parts almost always indicate skipped inspection steps, lower-grade copper stock, or outsourced production that adds hidden risk. To validate supplier reliability before committing to a full project, focus on three verifiable checks. First, request dimensional inspection reports for 3 random pieces of a similar copper contact fitting the supplier has produced in the last 6 months , with CMM or micrometer data for all critical dimensions. This confirms their actual process capability (Cpk should be ≥1.33 for high-volume electronic parts) rather than just advertised capabilities. Second, ask for their raw material incoming inspection protocol and oxidation resistance test data : for consumer electronics use, they should conduct material composition testing for every batch of copper stock, and provide 48-hour salt spray test results for passivated or plated parts to validate long-term corrosion resistance. Third, confirm their in-house tooling modification capacity and design change turnaround time : for prototype phase adjustments like a 0.2mm pin spacing change, a factory with in-house tooling shops can complete revisions in 2-3 working days, while outsourced tooling support adds 3-5 days of delay per change. For final supplier selection, narrow down to 2-3 candidates that pass all initial checks, place a small paid sample order for 3-5 pieces per variant, and use the sample delivery timeline, inspection report accuracy, and responsiveness to minor design tweaks as real-world validation of their performance. For long-term cooperation, also confirm their capacity ramp-up plan: can they scale to 24,000 units per year without extending lead times, and do they have secondary raw material suppliers to mitigate disruption risks from copper supply chain volatility?", "upvoteCount": 5, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#acceptedAnswer", "datePublished": "2026-10-07T04:32:31Z", "author": {"@type": "Person","name": "Michael Wu","url": "https://www.jaterson.com/team/michael.html"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "When onboarding a new custom copper fitting supplier, set clear, documented milestone requirements before placing any order to avoid timeline creep and misaligned expectations. Start with a written sample sign-off checklist that includes not just dimensional and appearance specs, but also functional test criteria (like contact resistance for charging fittings) and packaging requirements, so there is no ambiguity about what counts as an acceptable sample. For the prototype phase, agree on a fixed number of included design iterations and the turnaround time for each iteration upfront, with clear consequences for delays—for example, a 10% discount on the sample fee for each day of delay beyond the agreed timeline. Before moving from prototype to mass production, require a formal production transfer sign-off that confirms the supplier has frozen the production process, trained line workers on the part’s critical specs, and completed a 100-piece pilot run with zero critical defects. Also, confirm they have a dedicated point of contact for your project who can respond to inquiries within 8 working hours, rather than a general sales contact who has to relay messages to the production floor.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-2", "datePublished": "2026-10-07T04:08:34Z", "author": {"@type": "Person","name": "Kevin Liu","url": "https://www.jaterson.com/team/kevin.html"} } , { "@type": "Answer", "text": "If your copper fittings require plastic overmolding for insulation or mounting purposes, pay close attention to the supplier’s overmolding process control capabilities, as poor adhesion or dimensional shift between the copper insert and plastic is a common hidden defect that only shows up during assembly or field use. Ask the supplier to share their process parameter window for similar copper insert overmolding projects, including melt temperature, injection pressure, holding time, and insert preheating temperature. A supplier with a wide, well-documented process window is far less likely to have batch-to-batch consistency issues than one that relies on manual adjustment per run. Common defects to watch for include insert misalignment (caused by loose fixture design), plastic flash around the copper contact area (caused by incorrect clamping force), and poor bond strength (caused by insufficient insert preheating). Request cross-section images of sample overmolded parts to verify there are no gaps between the copper and plastic, and ask for pull-out force test data to confirm the bond meets your assembly requirements.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-3", "datePublished": "2026-10-07T04:04:01Z", "author": {"@type": "Person","name": "Sophia Wang","url": "https://www.jaterson.com/team/sophia.html"} } , { "@type": "Answer", "text": "When evaluating copper fitting samples, don’t limit testing to dimensional and material specs—validate performance against real-world end-use conditions to catch issues that would only appear after the product reaches customers. For wireless charging contact fittings, key functional tests include contact resistance measurement (should stay below 5mΩ across 10,000 insertion cycles), temperature rise testing under full charging load (should not exceed 15°C above ambient), and compatibility with your existing housing and PCB assembly. Ask the supplier if they can conduct pre-assembly testing with your provided mating components (like the charging coil or housing) to confirm the fittings fit correctly without forcing, which reduces assembly line rework rates. Also, consider field performance factors: if your product will be used in high-humidity regions, ask for 96-hour constant humidity test data to confirm the copper fittings don’t oxidize to the point of increasing contact resistance. For products that undergo frequent plugging and unplugging, request wear test data to ensure the contact surface maintains its finish and conductivity over the product’s 2-year expected lifespan.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-4", "datePublished": "2026-10-07T03:38:27Z", "author": {"@type": "Person","name": "Jason Zhou","url": "https://www.jaterson.com/team/jason.html"} } , { "@type": "Answer", "text": "To assess long-term production consistency and scalability, look into the supplier’s production line setup for custom copper fittings, especially their level of automation for high-volume runs. For copper contact fittings, key automated processes to look for include automated feeding for stamping or CNC turning, in-line dimensional inspection with vision systems, and automated packaging that reduces manual handling damage. A supplier with 70% or higher automation for critical processing steps will have lower per-unit labor costs, more consistent dimensional accuracy, and faster capacity ramp-up than a supplier that relies mostly on manual operation. Ask for the standard cycle time per part for each production step, and calculate the theoretical daily output to confirm they can meet your volume requirements without running overtime, which often leads to quality lapses. Also, check if they have dedicated production lines for electronic-grade copper parts, or if your parts will be run on the same lines as general hardware parts, which increases the risk of cross-contamination or mixed batches.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-5", "datePublished": "2026-10-07T03:22:00Z", "author": {"@type": "Person","name": "Rachel Huang","url": "https://www.jaterson.com/team/rachel.html"} } , { "@type": "Answer", "text": "Early DFM (Design for Manufacturing) review with the supplier’s tooling team can prevent 80% of common quality and cost issues before tooling is even cut. For copper contact fittings produced via stamping, ask the supplier to review your design for features that increase tooling wear or cause dimensional inconsistency—for example, sharp internal corners that cause stress concentration in the copper, or pin spacing that is too narrow for standard stamping tolerances. For overmolded parts, gate location is a critical tradeoff: gates placed too close to the copper contact surface can cause flash or material buildup that interferes with conductivity, while gates placed on the plastic mounting side may require additional post-processing to remove. A good tooling design will place gates in non-functional areas of the plastic, and use precision insert fixtures to hold the copper fitting firmly in place during injection to prevent misalignment. Request a DFM report with clear recommendations for design tweaks that reduce tooling cost, extend tool life, and improve part quality, rather than a supplier that accepts your design as-is without any feedback.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-6", "datePublished": "2026-10-07T03:11:22Z", "author": {"@type": "Person","name": "David Zhang","url": "https://www.jaterson.com/team/david.html"} } , { "@type": "Answer", "text": "Tooling quality is the foundation of long-term part consistency for custom copper fittings, so it’s worth verifying the supplier’s tooling construction and maintenance practices before committing to high-volume production. For stamping dies used for copper contact fittings, ask about the steel grade used for the die core: SKD11 or DC53 tool steel with heat treatment to HRC 58-62 is standard for high-volume runs, and will deliver a tool life of 500,000 to 1 million strokes, while lower-grade carbon steel dies will wear out faster and cause dimensional drift after 100,000 strokes. For overmolding molds, confirm the cavity machining tolerance is ±0.005mm or tighter, to ensure the copper insert fits snugly without shifting during injection. Also, ask about the supplier’s preventive tooling maintenance schedule: reliable suppliers perform inspections and cleaning every 50,000 strokes for stamping dies, and every 10,000 shots for injection molds, rather than only repairing tools when they break. Request a written tooling warranty that covers defects in materials or workmanship for at least 1 year, and clarifies who is responsible for tooling modification costs if design changes are needed during the prototype phase.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-7", "datePublished": "2026-10-07T02:43:06Z", "author": {"@type": "Person","name": "Linda Xu","url": "https://www.jaterson.com/team/linda.html"} } , { "@type": "Answer", "text": "For consumer electronics copper fittings sold in global markets, confirm the supplier can provide all required compliance documentation and testing support to avoid costly market entry delays. At minimum, all copper fittings and any associated overmolded plastic must meet RoHS 2.0 and REACH SVHC requirements for the EU market, and California Prop 65 requirements for the US market, with full material declaration (MD) and test reports from accredited third-party labs like SGS or Intertek. For contact fittings used in charging devices, you may also need UL 94 flame rating documentation for any plastic components, and IEC 60068-2-11 test reports for salt spray corrosion resistance. Ask the supplier if they can provide batch-specific test reports for each mass production shipment, rather than just a single generic report from 2 years ago, as material batches can vary. Also, confirm their documentation system can provide traceability from the raw copper lot number all the way to the finished part shipment, which is required for most major consumer electronics brand audits and for recalling specific batches if a quality issue is discovered later.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/vet-reliable-custom-copper-fitting-manufacturer-consumer-electronics.html#suggestedAnswer-8", "datePublished": "2026-10-07T02:38:33Z", "author": {"@type": "Person","name": "Daniel Yang","url": "https://www.jaterson.com/team/daniel.html"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.jaterson.com/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.jaterson.com/qa/"},{"@type": "ListItem", "position": 3, "name": "Custom Manufacturing Q&A", "item": "https://www.jaterson.com/qa/oem-odm/"} ,{"@type": "ListItem", "position": 4, "name": "How to vet a reliable custom manufacturer for copper fittings in consumer electronics?"} ] } ] ```