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Square (Cold Formed) 方钢管 ( 冷轧 ) |
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Rectangular (Cold Formed) 矩型钢管( 冷轧 ) |
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Circular (Cold Formed) 圆钢管( 冷轧 ) |
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Square (Hot Finished) 方钢管( 热轧 ) |
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Rectangular (Hot Finished) 矩型钢管( 热轧 ) |
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Circular (Hot Finished) 圆钢管( 热轧 ) |
