HDPE DOUBLE WALL CORRUGATED PIPES (DWC) are being used as cable protection ducts and carry ISI mark IS 14930 part II. HDPE DWC pipes are best and economical and give far longer life (50years) compared to conventional RCC and GI pipes used for this purpose.Used as underground cable protection and management For Signal and Telecom, Power & Optical Fiber CablesHDPE DOUBLE WALL CORRUGATED PIPES Made of HDPE as Power, Signal, and Telecom Cable & Optical Fiber Cable Ducting. Produced as per IS 14930 Part- II