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天津鍋爐管20G “大無(wú)縫”推行以創(chuàng)世界一流企業(yè)為目標(biāo)
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38×4-5-6-7-8-9-10
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159×16-18-20-22-25-30
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500×10-12-14-16-20-25-34-40-50
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39×3.5-5-8-10
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168×8-10-12-14-20-25-30-35
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510×10-12-14-16-20-25-34-40-50
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42×3.5-4-5-6-7-8-9-10
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180×8-12-16-25-30
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530×10-12-14-16-18-20-30-40
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45×3.5-4-5-6-7-8-9
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180×32-34-38-40-45-50
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560×10-14-16-20-25-30-40-50-60
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48×3.5-4-5-6-7-8-9-10
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194×6-8-12-16-20-25-30-40-45-50
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580×10-14-16-20-30-40-50-70
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