Manufacturing of road motor vehicles; Operating services for urban household waste; Kitchen waste treatment; Highway management and maintenance; Road cargo transportation (excluding hazardous goods). General items: Sales of automobiles; Sales of new energy vehicles; Wholesale of auto parts; Retail of auto parts; Manufacturing of auto parts and accessories; Manufacturing of environmental protection special equipment; Sales of environmental protection special equipment; Sales of special equipment; Sales of metal materials; Sales of metal products; Manufacturing of metal structures; Sales of fire-fighting equipment; Manufacturing of safety and fire-fighting metal products; Leasing of construction machinery and equipment; Sales of construction machinery; Manufacturing of hardware products; Wholesale of hardware products; Sales of agricultural machinery; Sales of plastic products; Manufacturing of household waste treatment equipment; Sales of household waste treatment equipment; Sales of office equipment; Sales of tires; Labor services (excluding labor dispatch); Domestic freight forwarding; Fire-fighting technical services; Sewage treatment and reuse; Water pollution control; Urban greening management; Municipal facility management; Solid waste treatment; Import and export of goods; Used car brokerage.