... screw spike, drive spike, two-end spike, dog spike,sharp-end spike and s hex head screw spike(screw spike)A: B:Elastic bar, lock washer, fishplate, rail support, steel sleeper ... , rail anchor, track rod, gauge plate, nylon yarn, rubber foot.2 Standard componentsA: Hex bolt, square ... and full set of special equipments, etc. Standards for railway products: T B, UIC , AREA, etc. Standards ...