Main business blank：heat exchanger industry、Brass valve&water-heating equipments、Logistics equipment、hyd fitting&manifold block、brass valve、kids shoes etc.
Main business blank：mainly producing and selling Bosch Denso Delphi CR injectors, nozzles, control valve, valve bonnets, CRIN repair kits, injector adjusting shims, common rail injector testers and repair tools.
Main business blank：bus automatic door mechanisms for buses & coaches, door panels for buses & coaches, pneumatic steps for buses, Luggage door, bus seat, manual or electrical wheelchair ramps for low-floor buses, bus seat, bus windshield wiper,
