... C27200CuZn37), C28000(CuZn40)4.Bronze: C51000, C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum: Al6061, Al6063 etc7,.Carbon steel: ... DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/ ... 90 CMWarrantywe confirm our goods will satisfy yr request of 100%,and have 18 month warranty.Aftersales servicewe ...