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  4. Standard "GB/T 9649.20-2001"
WITHDRAWN GB/T 9649.20-2001 29.4.2001 preview

GB/T 9649.20-2001

The terminology classification codes of geology and mineral resources—Hydrogeology

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STANDARD published on 29.4.2001


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The information about the standard:

Designation standards: GB/T 9649.20-2001
Note: WITHDRAWN
Publication date standards: 29.4.2001
SKU: NS-892131
Country: Chinese technical standard
Category: Technical standards GB

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