159x18mm無縫鋼管現代工業的發展是一個相互協作
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28×3-3.5-4-5-6
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140×5-6-7-8-9-10-12━14-16-20-22
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406×10-20━25-28-35-40
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32×3.5-4-5-6-8
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146×4.5-6-8-12-14-16-18-20-25-30
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426×10-12-14-16-20-25-30-35-40
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34×4-5-6-8
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152×4.5-6-8-12-14-16-18-20-25-30
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450×10-12-14-16-20-25-34-40-50
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36×3.5-5-6-8
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159×4.5-6-10-12-14
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480×10-12-14-16-18-20-25-30-40
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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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