Computer USB connector 1.Smooth surface,burr-free 2.High precision,good stability 3.ISO9001,ROHS 4.OEM service offered ... Korea, Japan, Europe and America, etc.Production details:Zinc casting computer USB connector part Materialaluminum alloy A380,A360.ADC12,Zinc alloy 3#zinc,5 ... goal is happy customers! Welcome to visit our company anytime! High quality! Pretty nice price! Professional service!