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  4. Standard "GB/T 9115.31-1988"
WITHDRAWN GB/T 9115.31-1988 1.1.1988 preview

GB/T 9115.31-1988

Steel pipe welding neck flanges with ring-joint face for PN 2. 0MPa (20 bar)

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STANDARD published on 1.1.1988


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The information about the standard:

Designation standards: GB/T 9115.31-1988
Note: WITHDRAWN
Publication date standards: 1.1.1988
SKU: NS-1231845
Country: Chinese technical standard
Category: Technical standards GB

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