Duct plus is the biggest manufacturer in China producing various flexible ducts for ventilation needs. Our main products are: Insulated and non-insulated aluminium flexible ducts, PVC flexible ducts, PET flexible ducts, and semirigid flexible ducts etc. with high quality and competitive prices. Our products are sold throughout all over the world, especially in Eurooe, Middle East, Asia, and our brand Duct+ enjoys good reputation. The whole plant covers an area of 60000 square meters. Now we have 110 skill workers, more than 10 sets of advanced automatic production lines for superior manufacturing and installation technology, annual output 10 million meters various ducts.