1,lathe machine parts and function 2,Brass (ROHS) 3,Professional production equipment, superior quality 1 ... terminals, Brass terminals,CNC turning part, lathe machine parts and function 2, ISO9001:2008, ROHS certification 3.plating nickel,zinc,silveCNC ... .Absolute digital caliper,roughness tester and concentricity tester etc.Product material: carbon steel,cooper,iron,aluminium and stainless steel etc.4 ...