Research, development, production, processing, and sales: Complete electrical equipment, automotive repair equipment, testing equipment, vehicle exhaust testing devices, energy-saving and purification devices, new energy vehicle charging pile equipment, general welding equipment and intelligent automatic welding equipment, industrial automation equipment and accessories, electronic components, hardware products, hardware tools, plastic and rubber products, heating equipment, lighting products, electromechanical equipment and electronic equipment, daily-use chemical products (excluding hazardous chemicals), metal products, Class I medical devices, medical furniture, office equipment, masks (non-medical), textiles, meltblown fabric, labor protection supplies, protective supplies; Metal surface treatment and heat treatment processing; Provision of technical consulting and technical services for the above projects; Import or export of goods and technology (excluding goods and technology imports and exports prohibited or subject to administrative approval by the state) (the above business scope involves import and export of goods and technology).