Mechanical parts and parts processing; Mechanical parts and parts sales; General parts manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Mold manufacturing; Mold sales; Nonferrous metal casting; Professional design services; Industrial design services; Industrial engineering design services; Auto parts research and development; Auto parts and accessories manufacturing; Motorcycle and parts research and development; Motorcycle parts manufacturing; Bearings, gears and transmission parts manufacturing; Bearings, gears and transmission parts sales; Agriculture, forestry, animal husbandry and fishery machinery parts manufacturing Manufacturing; sales of agricultural, forestry, animal husbandry and fishery machinery accessories; manufacturing of marine supporting equipment; sales of metal packaging containers and materials; manufacturing of metal packaging containers and materials; manufacturing of metal tools; sales of metal tools; manufacturing of gears and gear reducers, gearboxes; sales of gears, gear reducers, and gearboxes; business training (excluding educational training, vocational skills training and other training that require a license); manufacturing of forgings and powder metallurgy products; sales of forgings and powder metallurgy products; sales of first-class medical devices; import and export of goods; import and export of technology