Type:Air Conditioning Product name:Air Conditioner Duct Project Contractor Spiral Duct Price Material:Galvanized steel with Outer aluminum/stainless steel cladding Size in diameter :700mm~1500mm Material thickness:1mm Length:40 meters each for 18 Packaged Units Shape:round Method:any Function:supply air Pipe fittings:elbow, flange, straight, etc Application:Airport Show More