Black steel pipe is uncoated and made with out steam
and subsequently, it is broadly used for transporting gas like propane and natural fuel to residential and industrial constructing. The amount of galvanizing could be very small, solely 10-50g/m2, and its corrosion resistance is far worse than that of hot-dip galvanized pipes. Regular galvanized pipe producers, to have the ability to ensure high quality, most … Continue reading Black steel pipe is uncoated and made with out steam
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