PVC flexible duct is made by pvc heavy duty laminated fabric. Steel wire is its framework, if the diameter of duct is large, the diameter of steel wire will be large as well.
The framework of duct is protected by rubber wearstrip.
1.Vibration resistant,Tearing resistant,
2.Waterproof,flame retardant, heat resistant
3.Oil, Acid &Alkali Resistant
1. ventilation of fumes
2.dust extraction collection