New material technology research and development; Technical services, technical development, technical consulting, technical exchanges, technical transfer, technical promotion; Kitchen utensils and daily miscellaneous products; Sales of daily chemical products; Daily miscellaneous products; Chemicals); Retails of daily use of appliances; Coating sales (excluding dangerous chemicals); Sales for sealing; Sales of building decorative materials; Sales of waterproof coil products; Floor sales; Light quality building materials sales; Sales;

Sales of plastic products; Construction of stadium facilities; Professional cleaning, cleaning, disinfection services; Building cleaning services; Housekeeping services; Residential hydropower installation and maintenance services; Garden greening project construction; Engineering management service service; Engineering management service service