General Projects: Environmental protection equipment manufacturing; Environmental protection equipment sales; Mining machinery manufacturing; Mining machinery sales; Equipment manufacturing (excluding specialized equipment manufacturing requiring licenses); Machinery and equipment sales; General machinery installation services; Sales of construction machinery for building projects; Manufacturing of construction machinery for building projects; Rental services (excluding rental services requiring licenses); Sales of mechanical parts and components; Machining of mechanical parts and components; General equipment manufacturing (excluding special equipment manufacturing); General component manufacturing; Environmental protection consulting services; Equipment repair; Shipbuilding; Import and export of goods. (Excluding projects that require special approval, operated independently and lawfully in accordance with the business license.)