Current label: Tangshan rectangular tube wholesale
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Manufacturing of rectangular tubes: rectangular tubes, that is, rectangular tubes. Rectangular tube is a kind of hollow long steel, also called flat tube, flat square tube or square flat tube (literally). When the bending and torsional strength are the same, the weight is light, so it is generally used to manufacture mechanical parts and engineering structures. Hot rolled rectangular tube, continuous casting billet and blooming plate are used as raw materials, and then pass through the heating furnace, even when using high-pressure water,