... 3. High-toughness 4. Excellent resistance HDPE Pipe Performance: 1.Non-toxic, health:PE pipe material non-toxic, tasteless, through the ... materials, can resistance to various chemical media. 3.Noleakage: PE pipe is connected by electric melting, its interface strength higher than ... tube itself . 4.High toughness: Fracture extension rate of PE pipe, commonly more than 500%. .As to the uneven settlement ...