1\ Railway Fasteners
A: Railway bolt, square head screw spike, T type bolt, 70 rail spike, spiral spike, dog spike, turnout spike.
B:Elastic bar, lock washer, fishplate, rail support, steel sleeper, rail anchor, track rod, gauge plate, nylon yarn, rubber foot.

2\ Standard components
A: 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.

3\ Fastener : Spring washer, flat washer, split pin

4\ Anti-loosen Fasteners : Various nuts and bolts (Nylon anti-loosen, mechanical anti-loosen, screw anti-loosen types)
5\ Various Standard components: Fasteners for motor, diesel engine, mechanical vehicle, petrochemicals, and electric power, etc.
6\ Mechanical processing components : thread spinner fittings, auto fittings, and full set of special equipments, etc.
Standards for railway products: T B, UIC , AREA, etc.

Standards for standard components: GB, DIN, ASTM/ANSI, BS, JIS, etc.