... a Manufacturer & Supplier Specializing in Double Side PCB, Multi-Layer PCB, F4BK PCB, Ceramic PCB, Rogers PCB, Aluminum PCB. Meanwhile, we provide PCBA ( Assembly) ... building prototype quantities, and testing.We supply all kinds of flex PCB Specifications: 1) Min. Trace width: 0.004" 2) ... Tech Ltd. is an expert FPC, PCB & PCBA manufacturing company based in China. With ten years of development, from a ...