... .highly flexible 2.steel wire coated 3.light weight PVC spring hoseSpecifications: -Apply to low/medium pressure A/C system -Industrial ... in electronic factory, bathroom for air exhausting Features:Material: PVC, spring steel ringWorking temperature: -10 to +80 centigradeWind speed: 25 m ... : 10 metersColor: Grey, White,etc.Website: www.dggljd.cn PVC spring hose