... for trucks.Collection of pop rivet for railway,Collection of railway fastener,Collection of wind-driven fasteners,Collection of steel fasteners. 3 ... ,DORSE,TATRA,KAMAZ,COASTER,TROLLY,FORD,MACK,etc. 4.Material: 45# Steel,40Cr(SAE 5140),35CrMo(SAE 4135).42CrMo ... Quality: Modern concept of management and strong technology support.The strict quality control from the raw material to the finished production ...