The perfect performance of innovated corrugated pipe for sewage pipe system: 1) Supper stiffness of SN8, SN12.5, SN16. . 2) Saving 30% polyethylene material than corrugated pipe; 3) Larger diameter from 500 to 2400mmareavailable. 4) Less weight than corrugated pipe in same stiffness. 5) Easy connectiondue torealizedelectric-fusion; 6) Less weight than normal corrugated pipe in same stiffness; 7) Environmental-friendly:No pollution through the whole production process.