Current label: Tangshan Fangguan Wholesale Factory
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Square tube is a hollow square thin-walled steel tube, also known as steel cold-formed profile: it is a profile steel with square section dimensions made of Q235 hot-rolled or cold-rolled strip steel or coiled plate as the base material after cold bending and forming, and then high-frequency welding. Hot rolled extra thick wall square tubes are subject to cyclic loading except for wall thickening. Glass curtain walls, automobile chassis, solar power generation supports and many machine parts are subject to cyclic loading