General items: sales of generators and generator sets, manufacturing of generators and generator sets, sales of machinery and equipment, sales of pumps and vacuum equipment, sales of mechanical and electrical equipment, sales of plug-in hybrid engines, sales of new energy prime mover equipment, sales of office equipment, sales of electrical equipment, sales of agricultural machinery, sales of parts of agriculture, forestry, animal husbandry and fishery machinery, agriculture, forestry, animal husbandry, sideline Sales of fishery machinery, sales of construction machinery, sales of mining machinery, sales of special equipment for environmental protection, sales of solar thermal utilization equipment, sales of mechanical parts and parts, wholesale of hardware products, sales of automobiles, wholesale of auto parts, sales of automobile decoration products, sales of ships, sales of containers, sales of building materials, sales of building waterproof membrane products, sales of rubber products, sales of labor protection articles, sales of special equipment, sales of household appliances, import and export of goods, import and export of technology. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law)