... . 2.Wire Dia.:0.01mm-10mm 3.ISO9001 Stainless steel wire form spring1.Material:carbon steel;spring steel;stainless steel,alloy steel.2 ... Units Produced(Previous Year) Spring, Pin, Stamping, Clip Spring 117,100,000 Pcs Per Year, Pin 12,000,000 Pcs Per Year, Stamping 9 ... ,Clip 14,400,000 Pcs Per Year Spring 69,000,000 Pcs, Pin 6,000,000 Pcs, Stamping 5,000,000 Pcs, Clip 6,000 ...