Mobilephone Copper contact pin: 1,Material:copper 2,Processing method:stamping and gold plating 3,OEM custom made Yonglibaowei Machinery specialized in CNC parts,stamping parts, turned parts, turning parts, machine parts, machine shaft & metal parts. The parts we manufactured is widely used for following categoriesMedical & Technological partsThe Automotive partsThe telecommunication partsThe ...