... added with stabilizer, antioxidant, anti-shock agent. PVC cable sleeveProduct properties:PVC-U pipe of wire can endure the pressure, ... open in concrete. Moisture-proof, acid and alkali resistance: PVC sleeve is not liable to rust, acid resistant, alkali ... fire propagation. High insulating property: due to PVC?s inconductivity, PVC sleeve can prevent unexpected electricity leakage and electric shock ...