Manufacturing of automotive parts and accessories; wholesale of automotive parts and accessories; retail of automotive parts and accessories; manufacturing of intelligent in-vehicle equipment; sales of intelligent in-vehicle equipment; manufacturing of railway locomotive and rolling stock parts; sales of railway locomotive and rolling stock parts; production of furniture parts; sales of furniture parts; manufacturing of水上 transport equipment parts; sales of水上 transport equipment parts; furniture manufacturing; furniture sales; manufacturing of sponge products; sales of sponge products; mold manufacturing; mold sales; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; sales of solar thermal power generation products; spray coating; plastic surface treatment.