pvc pipe,cpvc pipe,plastic pipe Buired pvc-c for power and cable ducts Specification: Outer diameter:50mm-219mm. Advantages of CPVC Electricity pipes1. Good flexibility, not easy for rupture or aging.2. Good sealing performance, long lifetime.3. No radiative pollution.4. Easy for production and installation, and low cost for installation5. ATON CPVC cable ducts have been tested by EAST China electric power institute on 15 days of Galvanized examination. and approved to meet the customers' requirements.