PCA insulation duct

Application: Applied to the Olympic venues, terminal building, the boarding bridge air conditioning of units, large exhibition center,shopping malls,undergound or hotels and other places which quickly and efficiently conveying cold air or warm air. Can manufacture based on customer’s requirement such as size,color and so on (Stype: Folding type, flexible with steel wire type,and reducer type.) (Corrosion resistance,no smell,no fiber dust,waterproof, smooth inner duct wall