1 Railway FastenersA: 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 bolt, steel structure bolt, torshear type high strength plain washer, high strength bolt for bridge, stud, timber spike, hexagon flange bolt, bolt for carriage, handing down bolt, T type bolt, hinged bolt.B: Hex nut, square nut, hex flange nut, slotted nut, high strength nut for bolt.