The company specializes in the production of spiral duct, total plate duct is widely used in ventilation, air conditioning, purification, dust removal, material transportation, especially suitable for airport, tube, exhibition hall, theater, great hall, supermarkets, textile, electronics factory such as large area, high space venues, its high air tightness is suitable for pharmaceutical, papermaking, chemical, shipbuilding, tunnel and other industries. Welcome to order common plate duct, spiral duct and accessories, corner iron duct, corner code, check code, regulating valve, smoke exhaust, fire valve, unpowered air ball, negative pressure fan, centrifugal fan, axial flow fan.