Import Double And Multilayer Fr4 Pcb Board — Buy in Bulk from Supplier in China
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Double and Multilayer FR4 PCB board
This double and multilayer FR4 PCB board is manufactured using standard FR-4 epoxy glass laminate with optional alternatives including FR-1, CEM-1, CEM-3, and aluminum core substrates. The boards support surface finishes such as HASL, immersion gold, Ni/Au, OSP, and immersion tin, with minimum trace width and spacing of 4mil and minimum drill diameter of 0.2mm.
The base material meets standard IPC-4101 specifications for FR-4, with high TG variants and halogen-free options available. Board thickness ranges from 0.6mm to 3.00mm, and maximum panel size is 560mm by 720mm. Solder mask colors include green, black, red, white, blue, and transparent, with silk screen legend in white, yellow, or black.
Buyers in consumer electronics, automotive control systems, and industrial instrumentation source these boards for high-density circuitry requiring reliable signal integrity. All boards undergo 100% electrical testing and high-voltage testing. Trade terms require direct confirmation of lead time, minimum order quantity, and RoHS compliance documentation.
| Base material | FR-4, FR-1, CEM-1, CEM-3, Aluminum Core |
| Surface finish options | HASL (lead-free), immersion gold, Ni/Au, OSP, immersion tin |
| Layer count | Single-sided, double-sided, multilayer up to 12 layers |
| Minimum trace width | 4mil (0.102mm) |
| Minimum trace spacing | 4mil (0.102mm) |
| Minimum drill diameter | 0.2mm |
| Max board size | 560mm x 720mm |
| Board thickness range | 0.6mm to 3.00mm |
| Solder mask color options | Green, yellow, black, red, white, blue, transparent |
| Typical dielectric constant (FR-4) | Standard εr of 4.4 to 4.8 at 1GHz, typical for general-purpose PCBs |
Shenzhen Welsun Electronic Co., Ltd. is a PCB manufacturer located in Fuyo, Shenzhen, with harbor-tier verification and imported-tier supplier classification. The listing does not disclose production capacity, years in business, or client names. Response rate and average response time are not available, indicating limited buyer communication on the platform.
The company processes standard and high-performance PCB materials including halogen-free FR-4 and Rogers substrates. No certifications such as ISO 9001, IATF 16949, or IPC-A-600 compliance are stated. Buyers must request test reports for electrical performance and RoHS compliance directly.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing Double and Multilayer FR4 PCB board from Shenzhen Welsun Electronic Co., Ltd. - China Import Guide
Before ordering, verify the exact material grade of the FR-4 substrate, including Tg value, CTE, and flammability rating. Request RoHS and REACH compliance certificates if exporting to regulated markets. Confirm that the supplier uses verified raw material suppliers for the laminate and copper foil.
Lead time, Incoterms, and MOQ are not stated. Confirm whether the supplier offers FOB Shenzhen or EXW, and request written lead time estimates based on layer count and finish. Payment terms are typically 30% deposit with balance before shipment. Ask for packaging details to prevent board warpage during transit.
Upon delivery, inspect for solder mask defects, copper exposure, and drill alignment. Request a copy of the electrical test report and a sample of the final finish for microscopic inspection. Retain a board from each batch for future failure analysis. Confirm the supplier provides a lot traceability number on each shipment.
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30 suppliersBuy & Import Double And Multilayer Fr4 — Wholesale Supply from China
Securing a reliable supply chain for Double And Multilayer Fr4 Pcb Board is critical for maintaining your business operations. Shenzhen Welsun Electronic Co., Ltd., a verified supplier located in China, provides high-quality Double And Multilayer Fr4 ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Products industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Double And Multilayer Fr4 from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Shenzhen Welsun Electronic Co., Ltd.. This seamless communication is powered by EximNext, a premier global B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
About Shenzhen Welsun Electronic Co., Ltd. — Verified Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Shenzhen Welsun Electronic Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Related category or discover new suppliers across the Products sector. Expand your sourcing capabilities through our trusted import export marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Double And Multilayer Fr4
When importing Double And Multilayer Fr4 from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Double And Multilayer Fr4
How can I get the wholesale price for Double And Multilayer Fr4 Pcb Board?
Click the "Request Quotation" button to contact Shenzhen Welsun Electronic Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Double And Multilayer Fr4 in bulk from China?
Yes, Shenzhen Welsun Electronic Co., Ltd. provides Double And Multilayer Fr4 for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Shenzhen Welsun Electronic Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Double And Multilayer Fr4 to your country.
How do I request a sample of Double And Multilayer Fr4 Pcb Board?
Send a direct message to Shenzhen Welsun Electronic Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Shenzhen Welsun Electronic Co., Ltd. is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Double And Multilayer Fr4?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Shenzhen Welsun Electronic Co., Ltd..
Does Shenzhen Welsun Electronic Co., Ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Shenzhen Welsun Electronic Co., Ltd., offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Products suppliers on EximNext?
Yes, EximNext hosts a wide network of verified Related manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Shenzhen Welsun Electronic Co., Ltd. for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our global B2B marketplace.
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