胜利建工框架-9号注汽站-2025-36-无缝钢管中石化胜利建设工程有限公司镀锌无缝钢管\Φ21×6mm 20+Zn GB/T 8163镀锌无缝钢管\Φ22×3mm 20+Zn GB/T 8163镀锌无缝钢管\Φ27×3mm 20+Zn GB/T 8163镀锌无缝钢管\Φ27×4mm 20+Zn GB/T 8163镀锌无缝钢管\Φ34×3.5mm 20+Zn GB/T 8163镀锌无缝钢管\Φ34×4mm 20+Zn GB/T 8163镀锌无缝钢管\Φ42×3.5mm 20+Zn GB/T 8163镀锌无缝钢管\Φ42×4mm 20+Zn GB/T 8163镀锌无缝钢管\Φ48×3.5mm 20+Zn GB/T 8163镀锌无缝钢管\Φ48×6mm 20+Zn GB/T 8163镀锌无缝钢管\Φ60×4.5mm 20+Zn GB/T 8163镀锌无缝钢管\Φ60×4mm 20+Zn GB/T 8163结构碳素无缝钢管\Φ57×3mm Q235B GB/T 8162流体碳素无缝钢管\Φ114×5mm 20 GB/T 8163流体碳素无缝钢管\Φ140×5mm 20 GB/T 8163流体碳素无缝钢管\Φ159×4.5mm 20 GB/T 8163流体碳素无缝钢管\Φ159×5mm 20 GB/T 8163流体碳素无缝钢管\Φ168×5mm 20 GB/T 8163流体碳素无缝钢管\Φ21.3×4mm 20 GB/T 8163流体碳素无缝钢管\Φ219×6.5mm 20 GB/T 8163流体碳素无缝钢管\Φ219×6mm 20 GB/T 8163流体碳素无缝钢管\Φ22×3mm 20 GB/T 8163流体碳素无缝钢管\Φ27×4mm 20 GB/T 8163流体碳素无缝钢管\Φ273×6.5mm 20 GB/T 8163流体碳素无缝钢管\Φ325×7.5mm 20 GB/T 8163流体碳素无缝钢管\Φ34×3.5mm 20 GB/T 8163流体碳素无缝钢管\Φ34×4mm 20 GB/T 8163流体碳素无缝钢管\Φ377×7mm 20 GB/T 8163流体碳素无缝钢管\Φ377×9mm 20 GB/T 8163流体碳素无缝钢管\Φ42×4mm 20 GB/T 8163流体碳素无缝钢管\Φ48×4mm 20 GB/T 8163流体碳素无缝钢管\Φ57×3mm 20 GB/T 8163流体碳素无缝钢管\Φ57×4.5mm 20 GB/T 8163流体碳素无缝钢管\Φ60×4.5mm 20 GB/T 8163流体碳素无缝钢管\Φ76×4.5mm 20 GB/T 8163流体碳素无缝钢管\Φ89×4.5mm 20 GB/T 8163流体碳素无缝钢管\Φ89×7mm 20 GB/T 8163普通碳素钢直缝焊管\电熔焊 Φ480×5mm Q235B GB/T 9711
2025-07-18