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Pingxiang Lianjin Cheng Technology Co., Ltd (LJC) is a leading PCB manufacturer specializing in multilayer, HDI, high-frequency, copper base, and aluminum base PCBs. With over 15 years of experience and 240,000m² monthly production capacity, we deliver reliable, high-performance circuit boards for industrial, communication, automotive, and consumer electronics applications.
A trusted PCB manufacturer with advanced capabilities and global reach.
Established in 2010, LJC is a professional Printed Circuit Board (PCB) manufacturer based in China. We specialize in double-sided, multilayer, and high-density interconnect (HDI) boards. Our facility spans over 150,000m² with a monthly production capacity of 240,000m².
Over the past 15 years, we have invested in advanced PCB production and testing equipment from Germany, Japan, and the United States. This enables us to maintain strict quality control and deliver high-reliability PCBs for demanding applications in industrial automation, 5G communication, aviation, and power systems.
Strict quality control system with professional test lab. RoHS compliant and supplier capability assessed.
Internal design team and machinery workshop. We co-develop custom PCB solutions tailored to your needs.
Advanced automatic machines and strict process control. Capable of producing complex multilayer and HDI boards.
Custom packaging, FOB, CIF, DDU, DDP shipping options. We provide end-to-end support for your PCB needs.
High-performance PCBs for industrial, communication, automotive, and consumer applications.
For fast, secure data processing and storage in high-speed server environments.
Designed for 5G communication base stations with high reliability.
Double-sided thermoelectric separation board with copper substrate.
High-reliability board for industrial automation and control systems.
For aviation, automotive, and industrial machinery applications.
High-density interconnect boards with VIPPO technology.
1-4 layers, excellent thermal performance for LED and power applications.
High-speed, compact design for smartphones, tablets, and wearables.
We combine cutting-edge technology, rigorous quality control, and customer-centric service to deliver PCBs that exceed expectations.
Imported German, Japanese, and U.S. machinery ensures precision and consistency.
In-house testing lab with AOI, X-ray, and electrical testing for 100% reliability.
From prototype to mass production, we support full customization and rapid turnaround.
RoHS, ISO, and other international standards ensure environmental and safety compliance.
When the dielectric layer is below 0.4mm, using three thin prepreg (PP) sheets instead of one thick layer improves resin distribution, prevents voids, ensures uniform insulation, and enhances high-voltage breakdown performance. This increases reliability in power applications.
Prototype lead time is typically 5–7 days. Mass production varies from 10–20 days depending on complexity and order volume. Rush services are available upon request.
Yes, we offer professional custom sample services and support small-batch production with flexible packaging options.
We accept Gerber (RS-274X), IPC-2581, ODB++, and PCB design files from Altium, KiCad, Eagle, and other major tools.
Contact us for quotes, technical support, or custom PCB development.
Sales Manager
Pingxiang Lianjin Cheng Technology Co., Ltd
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