... : 30 daysSpecifications 1, Structure: epoxy powder, copolymer gel, PE anti-corrosion layer2, Applications: for water, oil, natural gas transmission ... coverage and strong tenacity;3. Strong anti stress fissionability, high impact resistance performance;4. High sealing with strong insulation performance;5 ... leak detectionNo leakage (25KV Voltage leak detection) high quality PE anticorrosion pipeline