Material: Carbon Steel : 1008,1010,1020,1035,1045,12L14,1215... Alloy Steel : 40Cr(1.7035),40CrNiMo(1.6511)... Stainless Steel : 303,304,316.410,420,430F... Alloy Aluminum : 5052,6061,6063... Brass : CuZn37,CuZn37Pb2,CuZn39Pb2,CuZn39Pb0.5,CuZn39Pb1,CuZn40,CuZn40Pb3... Copper Alloy : Red Copper(Cu-ETP),Bronze(CuSn4Pb4Zn3)...   PLATING: ZINC ROHS, ZINC YELLOW ROHS，ZINC BLACK,TIN PLATING BLACK OXIDE, NICKEL PLATING ROHS，SILVER PLATING,DACROMET ROHS and so on.