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Galvanized Square Tube

Galvanized square pipe is a hollow square cross-section steel pipe with a square cross-section shape and size made of hot-rolled or cold-rolled galvanized strip or galvanized coil as a blank after cold bending and then high-frequency welding. ; or a galvanized square rectangular tube made of pre-made cold-formed hollow steel pipes and then processed by hot-dip galvanizing.
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