The anticorrosive pipeline materials are mainly 2/3P anticorrosion (polyethylene), 2/3PE anticorrosion (polypropylene), single layer epoxy powder antisepsis, epoxy coal calendar anticorrosion, and IPN8710 water pipe anticorrosion.
Mainly depends on what kind of works you are using. The general municipal works are mainly water supply, drainage, transportation of liquid or gas, etc. But the inner wall of the water supply must be made of anticorrosive material IPN8710, water and nontoxic coatings. The external protection pipe depends on its own requirements, and the environment for the application of the above anticorrosive materials is not the same as the cost. It's still the same, looking at the requirements of the project.