Water Treatment & Sewage Treatment: Valves, pumps, fittings, water meters, seals, and various water supply and drainage devices; filter materials, membranes, and separation technology and equipment; various water dispensers, pure water machines, water purifiers, ultrafiltration water purifiers, and their accessories; water resources testing, analysis, monitoring instruments and equipment; water treatment agents, ozone, ultraviolet light, etc., water purification equipment and technology; various water-saving technologies and equipment, rainwater collection systems, steam condensate recovery; industrial water, rainwater, purified water, filtered water, sewage, sludge treatment equipment, technology, and services; seawater desalination, water environment supporting equipment, river and lake dredging technology and pollution control; water landscape engineering and swimming pool systems; aquatic plant sewage treatment, etc.

Gas Processing: Gas and smoke treatment equipment and technology, air pollution and toxic gas control, gas emission pollution detection and research, air purification, filtration devices and pollution prevention, environmental monitoring instruments and equipment, industrial exhaust purification, dust removal, desulfurization equipment and technology, cleaning equipment and technology, indoor pollution and engineering services, grease purifying products, vehicle exhaust treatment, air quality monitoring and remote sensing

Solid Waste Processing: Landfill, incineration, biochemical treatment equipment; waste detection; waste material recycling and reuse; waste collection, classification facilities; waste compression equipment, transportation equipment and technology, sanitation vehicles, ordinary and industrial fertilizer processing and regeneration

Noise Control: Noise control systems and detection devices, noise treatment technology, noise prevention materials and products, noise damage and interference control; Cleaning field: Various cleaning supplies and equipment, including garbage cans, trash cans, cleaning supplies, etc.; urban public toilets, mobile toilets, and technology

Various Cleaning Equipment: High-pressure cold (hot) water cleaning machines, vacuum cleaners, blowers, vacuum sweepers, automatic floor scrubbers, suction carpet cleaning machines, central air conditioning duct cleaning equipment, ultrasonic cleaning equipment, cleaning robots; urban public area and street cleaning equipment and supplies, cleaning cars, various cleaning agents, etc.