Product Specifications and Execution Standard
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Categorg
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Material
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Standards
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Dimension range
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application
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seamless steel pipe
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10#、20#、35#、45#、16Mn 27SiMn
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GB8162-1999
GB8163-1999
GB3087-1999
GB5310-1995
ST45.8、Ⅲ
GB6479-1986
GB9948-1988
GB5312-1999
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∮6-824×2-100
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Structural pipe
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20、35、45
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GB/T8162-1999
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∮6-610×1.5-40
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General structure application
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Liquid pipe
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