Residential interior decoration and construction; Sales of building materials and decorative materials; Engineering management services; Retail of daily necessities; Sales of knitwear and textiles; Sales of building materials; Household goods sales; Foreign contracted projects; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Landscape engineering construction; Sales of household appliances; Furniture sales; Hardware sanitary ware sales; Non residential real estate lease; Rental of counters and stalls (except for the items that must be approved according to law, carry out business activities independently according to law with the business license)