PVC / PU Helix Duct Hose difference
PVC / PU Helix Duct Hose Difference PVC Helix Duct Hose is a transparent plastic hose reinforced with a rigid plastic skeleton produced by PVC material. PU Helix Duct Hose is a full plastic pipe produced by polyurethane PU material. From the appearance, many customers Can’t be distinguished. So what is the difference between…