Metal structure manufacturing; Metal structure sales; Off-highway recreational vehicle and spare parts manufacturing; Off-highway recreational vehicle and spare parts sales; Motorcycle spare parts manufacturing; Motorcycle and spare parts R&D; Motorcycle and spare parts wholesale; Motorcycle and spare parts retail; Auto parts and accessories manufacturing; Auto spare parts wholesale; Auto spare parts retail; Rubber product manufacturing; Rubber product sales; Hardware product manufacturing; Hardware product R&D; Hardware product wholesale; Hardware products Retail; manufacturing of metal tools; sales of metal tools; manufacturing of pneumatic and electric tools; sales of pneumatic and electric tools; manufacturing of daily necessities; sales of daily necessities; sales of daily necessities; manufacturing of plastic products; sales of plastic products; wholesale of sporting goods and equipment; retail of sporting goods and equipment; sales of outdoor products; research and development of metal products; research and development of new material technology; research and development of special electronic materials; sales of new energy vehicle electrical accessories; import and export of goods; import and export of technology.