... PE, Elasticity and shock resisting. Inserting type, nailattached in clips. Save time and cost. Wiring duct(sold): Material: Made from PVC( ... : Solid design, especially for anti-dust and mouse. Telephone Wiring Duct(self-adhesive): Material: Made from PVC, good insulation and ... , and the strong adhesive tape in the duct buttom. Round Type Wiring Duct: Material: High impact, rigid, self-extinguishing P. V ...