1.High corrosion resistance, immunity of the impact of corrosive oil and kinds of waste water in life, resistance from acid and alkali corrosion.

2.High aging resistance with over 50 years of long lifetime.

3.High impact strength and mechanical intensity.

4.No jam-up and sediment, smooth internal wall, small flow resistance with 0.009 of friction coefficient, so little water head loss, 30% more flow volume than cast iron pipes of the same diameter.

5.No rust, so keep external wall un-contaminated by the rust of pipes and keep building fairness.

6.Light weitht: only 1/5 weight of cast iron pipes, so easy for carrying, loading & unloading and installation with 40-60% more efficient than cast iron ones.

7.Good sealing performance.

8.Complete specifications of pipes and fittings, which can meet many requirements of various designs and installations.