... do testing of hardness, salt spray test, coating and so on.SPECIFICATION:MATERIAL: LOW CARBON STEEL, C1045, BRASS, ALUMINIUM, AND OTHER ... ANY SPECIAL REQUIREMENTS OF MATERIAL, FINISH, HARDNESS, PACKING AND SO ON, PLS GIVE US THE DETAIL OR PRINTS. HOPING WE CAN ... TO WORK WITH YOU. Precisiom machining pins with cotter pin & lanyard