... , rubber, membrane keypad, wire harness, LCD, touchscreen etc. sourcing and assembly, final testing, and shipping. Our own PCBA factory is certified ... Polyester(PET), and in nowadays also can print circuit on a kind of special paper. PET has the following good advantages ... up to 350 micron 3.6) Excellent dimensional stability over a wide range of temperatures 3.7) Very good resistance to ...