Shenzhen Chengzhiyi Circuit Co., Ltd
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    18211305569
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    8A, Quanzhi Science and Technology Innovation Park Building, Maozhoushan Industrial Zone, Houting Community, Shajing Street, Bao'an District, Shenzhen
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4OZ copper substrate
Chengzhiyi Circuit is a powerful metal circuit board manufacturer in Shenzhen, with 12 years of experience in high-end customized sampling and mass pr
Product details

Shenzhen Chengzhiyi Circuit Co., Ltd. (CZY) was established in August 2008 and is a one-stop manufacturing service provider specializing in the production of PCB circuit boards, MCPCB metal based circuit boards, and PCBA. A high-tech enterprise that integrates research and development, manufacturing, and sales. Our products include high-end PCB double-sided multi-layer circuit boards, aluminum substrates, copper substrates, thermoelectric separation copper substrates, soft hard bonding boards, and PCBA. The product is mainly used in automotive lighting, automotive electronics, 5G communication equipment, industrial electronic control products, high-power power, medical equipment, LED lighting products, security facilities, and so on. Lean intelligent manufacturing is our commitment to our customers. Our company is a strong factory that has been audited and approved by SGS, with a complete set of automated production and precision testing equipment. Our products have fast delivery times, high quality, and good service. At present, the monthly output reaches 30000 square meters.

4OZ copper substrate product parameters

Plate thickness
3.0MM pressure resistance
AC2500-4000V
Production process
Exposure process Copper Foil Thickness
4OZ
Quality certification
ULE354470/ISO/SGS/IATF16949 thermal conductivity
2.0w/m.k
Solder mask type
Black oil Surface Treatment
OSP
E-T testing
100% computer short-circuit test delivery date
Sample: 1-3 days Batch: 5-7 days


  • 01

    12 years of focus

    Focused on the research and manufacturing of LED aluminum substrates for 10 years, with a 10000 square meter garden style industrial park and independent patents (ZL.7)

  • 02

    Precision Manufacturing

    A complete set of LED aluminum substrate automation production equipment and precision testing equipment with a production capacity of 20000 square meters per month

    The country is the first to introduce a 1.5-meter ultra long LED exposure machine, which can produce ultra long 1.5-meter boards and ultra-thin 0.4mm boards

  • 03

    Experienced

    We have served hundreds of indoor, outdoor, commercial and other lighting brands, and exported to Europe and America, becoming a supplier of aluminum substrates for lighting enterprises

  • 04

    The Dream of Craftsmanship

    Using big brand raw materials, the quality source is guaranteed

    A LED aluminum substrate production technology team with over 9 years of industry experience

    All products have passed UL certification (E354470), and the enterprise has obtained ISO9001:2015 international quality system certification

  • 05

    Delivery guarantee

    Guaranteed delivery time: Sample: 1-2 days, batch 3-5 days

    Respond to customer inquiries within 3 minutes and provide on-site service within 24 hours within the city

    Professional team provides relevant after-sales technical support










LED aluminum substrate, aluminum substrate sampling, aluminum substrate production, aluminum substrate rapid sampling

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