General business items are: ultrasonic cleaning equipment, high-pressure spray cleaning equipment, needle cleaning, phosphating, electrolytic treatment equipment, contact special cleaning equipment, strip cleaning equipment, ultrasonic welding machines, pure water machines, water purification equipment, industrial chillers, drying equipment, energy equipment, assembly lines, sewage treatment equipment, waste gas treatment equipment, automated machinery and equipment, electronic products, electromechanical products, artificial intelligence robots, research and development and sales of building decoration materials; domestic trade, import and export of goods and technology.