Excellent corrosion resistance: Apart from a few strong oxidant, can be resistant to a variety of aggressive chemical media; no electrochemical corrosion. ■ long life: at rated temperature and pressure conditions, PE pipes can be used safely for more than 50 years. ■ good impact resistance: PE pipe toughness, high impact strength, heavy direct pressure over the pipeline, the pipeline will not result in strong break. ■ reliable connection properties: strength PE pipe hot melt or fused interface is higher than the pipe body, joints will not load due to soil movement or live off the role. ■ good workability: light pipe, welding process is simple and convenient construction, engineering and lower total cost