railway parts-rail track clip 1.Material:60Si2Mn 2.Certificate:ISO9001:2008,CRCC 3.Manufacture ... and 60kg/m steel rail,sleeper60kg/m steel rail,sleeperSpring clip-III fastening,subwayCertificateISO9001:2008HardnessHRC41-46HRC42-47HRC44-48HRC44-48 Finish codePlain ... type clipIII type clipDT VI II type clipMain products:rail clip,screw spike,bolts,nuts,rail pad,washer,fish plate and ...