PVC air duct 1.Perfect flexibility,anti-friction 2.Oil resistant,Small bending radius 3.electrostatic grounding by spiral s PVC hose with steel wire reinforcementair pipeMterial:outer bore sofe PVC, inner steel wireFeatures":perfect flexsibility,anti-friction,oil resistant,small bending radius,free of softening agent and halogen,electrostatic grounding by spiral steel wire inside.Temperature ...