Galvanized steel pipe hot galvanized and galvanized two kinds of galvanized zinc coating thickness, with a coating uniform, strong adhesion, long life and other advantages. Galvanic low cost, the surface is not very smooth, its own corrosion resistance than hot galvanized pipe a lot of difference.
In order to improve the corrosion resistance of steel, galvanized steel pipe. Galvanized steel sub-hot galvanized and galvanized two kinds of hot-dip galvanized layer thickness, low cost of electro-galvanized, the surface is not very smooth.
Most of the old houses are galvanized pipe, and now the kind of iron pipe for gas and heating is also galvanized pipe, galvanized pipe as a water pipe, a few years later, a lot of rust generated in the pipe, not only the effluent of yellow water is not only polluted Sanitary ware, but also mixed with a non-smooth wall of bacteria, rust caused by excessive levels of heavy metals in water, seriously endangering the health of the human body.