Construction project construction. General projects: R&D of new material technology; sales of thermal insulation and sound insulation materials; general machinery and equipment installation services; sales of thermal insulation materials; manufacturing of thermal insulation and sound insulation materials; production, sales, research and development: thermal insulation materials, thermal insulation products and accessories, thermal insulation and sound insulation materials and products, building materials (excluding hazardous chemicals), steel, chemical products (excluding hazardous chemicals), decorative materials (excluding hazardous chemicals), auto parts, motorcycle accessories, Wujinjiaodian, stationery, paper products, electrical equipment; import and export of goods.