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Galvanized square steel pipe

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Galvanized square steel pipe is a hollow square section steel pipe with a square cross-section shape and size that is formed by cold bending and high-frequency welding using hot-rolled or cold-rolled galvanized strip steel or galvanized coil as the blank. Or a galvanized rectangular tube made of cold-formed hollow steel pipe prepared in advance and then processed by hot-dip galvanizing.