... C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc5. Iron: 1213, 12L14,12156. Aluminum: ... grinding, broaching, welding and assemblyAdvantages1. Competitive price with good quality 2. Low MOQ (200pcs is even acceptable in some ... properties and chemical elements according to your request High quality and have a certificate hardware products