... , milling, drilling, grinding, broaching, welding and assembly.3.Variety of standards:ISO,GB,DIN,JIS,ANSI4.ISO9001-2008,SGS,ROHS ... certificate.5.We have a lot of years technical experiences, we are engaged in the hardware ... C27200(CuZn37), C28000(CuZn40)4.Bronze: C51000, C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum: Al6061, Al6063 SpecificationM3-M36ColorPlain, blue plated ...