Our workforce through professional training. Skilled professional knowledge, solid sense of service, to fulfill the services demands of consumers for Fire-Resistant Air Duct, Spiral Ventilation Tube, Flex Vent Pipe, Test Water Weighting Bag,Flexible High Tensile Pvc Air Duct. Excellent quality, competitive prices, prompt delivery and dependable service are guaranteed Kindly let us know your quantity requirement under each size category so that we can inform you accordingly. The product will supply to all over the world, such as Europe, America, Australia,Hyderabad, New York,Oslo, Dominica.Our company insists on the purpose of "takes service priority for standard, quality guarantee for the brand, do business in good faith, to provide professional, rapid, accurate and timely service for you". We welcome old and new customers to negotiate with us. We will serve you with all sincerity!