Manufacturing of automotive parts and accessories; research and development of automotive parts; retail of automotive parts; wholesale of automotive parts; manufacturing of automotive decoration supplies; sales of automotive decoration supplies; manufacturing of high-speed rail equipment and accessories; sales of high-speed rail equipment and accessories; manufacturing of hardware products; research and development of hardware products; retail of hardware products; wholesale of hardware products; processing of mechanical parts and components; sales of mechanical parts and components; manufacturing of plastic products; sales of plastic products; manufacturing of molds; sales of molds; import and export of goods; technology import and export.