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We supply both black tubes&galvanized tubes Q195,Q235
Galvanized pipe, also known as galvanized steel pipe, divided into two kinds of hot dip galvanized and electric galvanized, hot dip galvanized galvanized layer thick, with uniform coating, strong adhesion, long service life and other advantages. The cost of galvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipe.