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  3. Technical standards GB
  4. Standard "GB 248-1964"
WITHDRAWN GB 248-1964 14.1.1964 preview

GB 248-1964

Assembled reinforced-concrete supports for roadways in coal mines

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STANDARD published on 14.1.1964


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The information about the standard:

Designation standards: GB 248-1964
Note: WITHDRAWN
Publication date standards: 14.1.1964
SKU: NS-895743
Country: Chinese technical standard
Category: Technical standards GB

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