... 2 Precise Machining 3 Short lead time 4 Excellent qulity & service CNC Precise metal plateA:certification ISO9001:2008 B ... C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc.5. Iron: 1213, 12L14 ... . Aluminum: Al6061, Al6063,AL7075,AL5052 etc. E.Processing Method cnc machining, turning, milling, drilling, grinding, broaching, welding,stamping, ...