... of hardness, salt spray test, coating and so on.SPECIFICATION:MATERIAL: LOW CARBON STEEL, C1045, BRASS, ALUMINIUM, AND OTHER MATERIAL REQUIRED ... CUSTOMERS' REQUIREMENTS.DELIVERY: 30-45DAYS AFTER ORDER PLACED.WE ARE SPECIALIZED IN MAKING VARIOUS STAMPING PARTS. IF YOU HAVE ANY SPECIAL REQUIREMENTS OF ... MATERIAL, FINISH, HARDNESS, PACKING AND SO ON, PLS GIVE ...