... -10mm 2.ISO9001:2008 3.EU ROHS compliant 4.REACH standard Dong Guan Hershey Spring Manufacturing Co. Ltd. is a ... plated wire, tin-plated copper wire, nickel-plated steel wire, non-magnetic stainless steel wire, heat-resistant steel wire, duplex stainless ... phosphorus copper, beryllium copper. Alloy steel contains 60Si2MNA, 60Si2CRVA, 55CrSi.Product performance1.service life: 1,000,000 times—5,000,000 ...