... dog spike,sharp-end spike and s hex head screw spike(screw spike)A: B:Elastic bar, lock washer, fishplate, rail support, steel sleeper, ... , rubber foot.2 Standard componentsA: Hex bolt, square bolt, steel structure bolt, torshear type high strength plain washer, high strength bolt ... : T B, UIC , AREA, etc. Standards for standard components: GB, DIN, ASTM/ANSI, BS, JIS, etc. Package : packed in the ...