... : C51000, C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum: Al6061, Al6063 etc7,.Carbon steel:C1006,C1010,C1018,C1022,C1035K ... modern facilities and quality control for Set Screw products.As we know, there are many Set Screw manufacturers are all over ... and have modern facilities and quality control for Set Screw process as, even better, other Set Screw manufacturers. Therefore, Dongguan Jinri ...