General Projects: Manufacturing of general equipment (excluding special equipment manufacturing); manufacturing of casting machinery; manufacturing of metal processing machinery; manufacturing of machinery for construction projects; manufacturing of wood and bamboo processing machinery; manufacturing of agricultural machinery; manufacturing of specialized machinery for agriculture, forestry, animal husbandry, and fishery; installation and maintenance of specialized machinery for agriculture, forestry, animal husbandry, and fishery; sales of agricultural machinery; sales of wood and bamboo processing machinery; sales of machinery for construction projects; sales of machinery and equipment; manufacturing of accessories for agricultural, forestry, animal husbandry, and fishery machinery; sales of accessories for water transportation equipment; sales of accessories for agricultural, forestry, animal husbandry, and fishery machinery; manufacturing of metal accessories for construction; sales of metal accessories for construction; machining of mechanical parts and components; manufacturing of general-purpose components; sales of mechanical parts and components (except as otherwise required by laws and regulations, conducting business operations independently and lawfully based on the business license).