In shenzhen city, the registration address of the central comician purification equipment company, ltd., is located on the 5th floor, area a of the fourth industrial district of the west side community, on the street of shenzhen city, and is registered as the bureau of light, with legal representatives flying on behalf of qui yun, and is generally operated on the following items: dustless cleaning works, central air conditioning works, mechanical electrical engineering, electrical equipment, automation equipment, technical design, development, marketing and installation maintenance of spraying equipment; paintboard, static flooring, sale and installation of epoxy resin floors, air purification equipment, ffu wind filtration units, new wind systems, clean workshops, windrooms, cargo canteens, air filters, surgical laboratory support equipment, hardware electronics, automation equipment, aluminium and stainless steel products, technical development, marketing and installation of purification accessories, maintenance of doors, domestic trade, import and export of goods and technology. The licensed projects are: air purification equipment, ffu wind filtering units, new wind systems, cleaner workstations, wind showers, cargo canteens, cleaner sheds, air filters, surgical laboratory kits, hardware electronics, automation equipment, spraying equipment, aluminium alloys and stainless steel products, purification accessories, production of central air conditioning refrigeration equipment