General projects: Pump and vacuum equipment sales; Sales of non-electric household appliances; Sales of household appliances; Sales of refrigeration and air-conditioning equipment; Sales of solar thermal equipment; Pump and vacuum equipment manufacturing; Fan, fan manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Fan sales; Household appliance manufacturing; Electronic special materials sales: Hardware products manufacturing; Hardware products wholesale; Nonferrous metal alloy manufacturing; Hardware products retail; Manufacture of daily necessities; Metal products manufacturing; Sales of pneumatic and power tools; Research and development of metal products; Electrical equipment sales; Electrical equipment manufacturing; Metal tool making; Lubricating oil sales; Import and export of goods; Import and export agent.