... Steel compression spring 2.wire dia:0.08-14mm 3.Material:as per demands 4.ISO9001 5.OEM service We are professional spring ... discussable11Wire diameter range:0.15-8mm12Material:carbon steel,stainless steel, manganese steel wire, nickel wire, galvanized wire, ... analyzer device imported from Germany,vacuum melting furnace,CNC machine center17Production euipment:devise industrial,auto, motorcycle, ...