... able to use more than 50 years.2. Excellant corrosion bearable performance of PE water supply pipe:Except few strong ... can bear many kinds of chemical media corrosion .PE pipe has no electro-chemical corrosion.3. The excellant wear resistence performance ... of environment protection, energy saving, hygiene,good sealing performance,anti-corrosion,shake resistence,good quality, cheap price, easy to use ...