... :Brass,copper,iron,steel,stainless steel .etc.2.Finish:N/A3.Drawing or sample customer is preferred.4.Advantage:factory supply &good price ... , C37700, C38500, C27200, C28000…4. Bronze: C51000, C52100, C54400…5. Iron: 1213, 12L14, 1215…6. Aluminum: Al6061, Al6063…products technicsStamping, machining ...