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結構鋼管\45#大口徑厚壁無縫鋼管豪鑫天鋼鐵
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48×3.5-4-5-6-7-8-9-10
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159×16-18-20-22-25-30
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426×10-12-14-16-20-25-30-35-40
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51×3.5-4-5-6-7-8-9-10
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168×8-10-12-14-20-25-30-35
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450×10-12-14-16-20-25-34-40
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56×3.5-4-5-6-7-8-9-10
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180×8-12-16-25-30
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480×10-12-14-16-18-20-25-30-40
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57×3.5-5-6-7-8-9-10-12
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180×32-34-38-40
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500×10-12-14-16-20-25-34-40
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60×3.5-4.5-5-6-7-8-9-12-14
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194×6-8-12-16-20-25-30-40
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510×10-12-14-16-20-25-34-40
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63×3.5-4.5-5-6-7-8-9-10-12-14
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203×6-7-10-15-20-25-30
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530×10-12-14-16-18-20-30-40
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68×4-4.5-5-6-7-8-9-10-12-14-16
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203×32-36-40
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