Today, we will provide a detailed introduction to the characteristics, advantages, and application areas of TPEP anti-corrosion spiral steel pipes. Firstly, TPEP anti-corrosion spiral steel pipe is a fourth generation anti-corrosion technology for long-distance water pipelines, with the Chinese name being externally wrapped polyethylene and internally fused epoxy anti-corrosion steel pipe. The outer wall of the pipeline adopts a three-layer PE structure anti-corrosion technology wrapped with polyethylene, and the inner wall is treated with hot-melt bonded epoxy anti-corrosion treatment