1.Standards for Railway Track Parts GB, TB/T, EN, UIC, AAR, DIN, SAS, BS. Railway Track PartsFishplates, Rail Dowel, Rail Anchor, Rail Sleeper pad, Rail Tie Plate, Rail Clip, Railway bolt, GaugeApron, Elastic Bar, Lock Washer, Flat Washer, Elastic Clip, Screw Spike.Standards for Railway Track PartsGB, TB/T, EN, UIC, AAR, DIN, SAS, BS. Rail Clip