If the
spiral steel pipe for water transmission is to transport tap water or drinking water, the inner wall is generally made of IPN8710 non-toxic anti-corrosion coating, and the outer wall is made of epoxy coal tar for anti-corrosion. pipes, do not change the water quality.
If the
spiral steel pipe for water transportation is to transport sewage or industrial water, generally the inner and outer walls only need to be anti-corrosion by epoxy coal tar pitch. It is cheap, easy to construct, and has a strong waterproof and moisture-resistant effect. Of course, if you don't mind the cost, you can also use a plastic coating or the type of corrosion protection.
