GB8163 20# 159*4.5 seamless steel pipe red 3pe coating fluid steel tubes

Product Application  Plastic-coated steel tube 108*4 Plastic-coated steel tube 108*4 

1.Various forms of circulating water system (civil circulating water and industrial circulating water), with excellent performance and anti-corrosion life up to 50 years.
2.Fire water system.
3.Water supply and drainage for various buildings (especially suitable for the cold and hot water systems in hotels, restaurant, upscale residential district).
4.Various chemical fluid transportation (acid, alkali, salt corrosion resistance)
5.Buried pipe and pass-pipe of electric wire and cable
6.Ventilation pipes, supply pipes and drain pipes of mines and pit.