The company's business scope includes: environmental protection equipment, product and accessories research and development, technology application, promotion and sales; environmental protection technology development, technology transfer and technical services; mechanical and electrical equipment, environmental protection equipment, sewage treatment equipment, waste gas purification equipment, mechanical equipment, Anti-corrosion equipment, industrial hose pumps and accessories, filter press equipment manufacturing (limited to branches), sales (including online sales), installation, maintenance, transformation, refurbishment, repair (except special equipment) and after-sales service; chemical supplies ( Sales of dangerous goods, monitoring and precursor chemicals), labor protection supplies, transportation facilities, pipe fittings, hardware tools, protective tools, instrumentation, electronic products, fire fighting equipment, wires and cables, and electrical materials (including online sales) ; Demolition engineering of houses and buildings, mechanical and electrical engineering, steel structure, building decoration and decoration, construction of waterproof and anti-corrosion insulation engineering (except blasting); processing of integrated workshops and steel structure workshops (limited to branches) and manufacturing (limited to branches) , Installation, renovation and maintenance; import and export of goods and technology.