3 layer polyethylene
Using for underground pipe line ,like underground petrol line pipe,gas pipe and drinking water line pipes,the advantage is long time anti-corrosion ,low water absorption,high mechanical strength .
The pipes are applied to many fields such as petroleum pipeline, natural gas pipeline, urban pipe network, mines pipeline,Coal Water Slurry pipeline, construction pipe for high voltage, wind power, bridges and high-speed rail steel construction etc.Steel Pipe Anti-corrosion Coating manufacturers
website:http://www.haiqianwei.net/steel-pipe-anti-corrosion-coating/