Pipeline characteristics: 1. The fungus and microorganism in the tap water or wastewater will not attach pipeline wall. 2. The inner coating of the pipeline is smooth; the fluid friction resistance is small. 3. The pipeline inner wall has excellent corrosion resistance. 4. The outer wall of the pipe coated with the single layer of polyethylene powder, flexible, resistant to bump, with a strong resistance to soil corrosion, green. 5. The design life of the inside and outside coating is up to 50 years. Mainly used in municipal water conservancy project (transport tap water, middle water, sewage), petroleum, chemical, natural gas, electricity, heat, sea water transport, coal and other fields. Apply to bury underground, overhead, underwater lying.