TPEP anti-corrosion steel pipe, which is a type of steel pipe that is wrapped with polyethylene on the outside and fused with epoxy on the inside. So, why can this pipeline become the anti-corrosion technology for the fourth generation long-distance water transmission pipeline? Firstly, let's learn about the internal and external anti-corrosion treatment technology of TPEP anti-corrosion steel pipes. In terms of the outer wall, the three-layer PE structure anti-corrosion technology with wrapped polyethylene is adopted, which is a very mature and effective anti-corrosion method.