Compared with plastic pipes and composite pipes, the quality of hot-dip plastic steel pipes combines the advantages of various pipes: the strength of steel pipes and the corrosion resistance, wear resistance, and low fluid resistance of plastic pipes. It is a green pipe with high safety and hygienic
Read MoreThere are two possibilities for the formation of surface defects of spiral steel pipes: one is that the material itself is not plastic enough during the deformation process, resulting in cracks and outward folds; the other is that the surface oxidation of the material causes surface defects, and the
Read MoreBefore the steel structure is painted, to ensure good bonding performance between the coating and the substrate, the surface of the steel to be painted and the nearby area must be pretreated. First of all, its surface must be clean, and no dust, oil, water stains, or other dirt and loose oxides are
Read MorePlastic-coated steel pipe is a new type of pipe material recently developed in China. It has a plastic-coated protective layer on the inside and outside, and a composite structure of reinforced welded steel pipe or seamless pressure-bearing steel pipe in the middle, which overcomes the easy rust and
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