Lubricating oil processing and manufacturing (excluding hazardous chemicals); lubricating oil sales; petroleum product manufacturing (excluding hazardous chemicals); petroleum product sales (excluding hazardous chemicals); special chemical product manufacturing (excluding hazardous chemicals); special chemical product sales (excluding hazardous chemicals); metal material sales; general equipment repair; mining machinery sales Sales of mechanical parts and components; wholesale of auto parts and accessories; retail of auto parts; operation of wires and cables; sales of high-performance nonferrous metals and alloy materials; wholesale of hardware products; retail of hardware products; automobile sales; manufacturing of synthetic materials (excluding hazardous chemicals); sales of synthetic materials; technical services, technology development, technical consultation, and technical exchanges Flow, technology transfer, technology promotion; contract energy management; leasing of special equipment; sales of special equipment; sales of charging piles; leasing of charging control equipment; second-hand car trading market operations; small and micro bus rental and operating services; motor vehicle repair and maintenance; car wash services; non-residential real estate leasing; wholesale of daily necessities; wholesale of motorcycles and spare parts; electric vehicles Sales of bicycles; maintenance of electric bicycles; retail of bicycles and spare parts; wholesale of bicycles and spare parts; sales of assistive bicycles, scooters and spare parts; sales of tires; sales of rubber products; sales of batteries; sales of battery spare parts License projects: construction projects (except nuclear power plant construction and operation, civil airport construction); installation, transformation and repair of special equipment