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Square steel pipe Building square tubeSquare tube is a name for square tube and rectangular tube, which is usually made of strip steel after processing and rolling. Specifically, square tube is formed by unpacking, flattening, curling and welding the strip steel into round tube, then rolling the round tube into square or rectangular tube according to the needs, and finally cutting it into specific lengths as needed. View More- Square TubeSquare tube is a name for square tube and rectangular tube, which is usually made of strip steel after processing and rolling. Specifically, square tube is formed by unpacking, flattening, curling and welding the strip steel into round tube, then rolling the round tube into square or rectangular tube according to the needs, and finally cutting it into specific lengths as needed. View More
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Shandong Ruilian Metal Products Co., Ltd.
