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  4. Standard "GB 7931-1987"
WITHDRAWN GB 7931-1987 10.6.1987 preview

GB 7931-1987

Specifications for aerophotogrammetric field work 15001100012000 topographic maps

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STANDARD published on 10.6.1987


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The information about the standard:

Designation standards: GB 7931-1987
Note: WITHDRAWN
Publication date standards: 10.6.1987
SKU: NS-896838
Country: Chinese technical standard
Category: Technical standards GB

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