| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 7931-1987 | English | RFQ |
ASK
|
Days<=6
|
Specifications for aerophotogrammetric field work 1: 500, 1: 1000, 1: 2000 topographic maps
|
GB 7931-1987
| Obsolete |
GB 7931-1987
|