... certificates.b. Machining machine, 5-500T stamping machines, punch machine, bending machine, drilling machine, polishing machine, milling machine.c. We can do testing of hardness, salt ... MAKING VARIOUS STAMPING PARTS. IF YOU HAVE ANY SPECIAL REQUIREMENTS OF MATERIAL, FINISH, HARDNESS, PACKING AND SO ON, PLS ... CAN HAVE THE CHANCE TO WORK WITH YOU. Precisiom machining pins with cotter pin & lanyard