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Standard Insuued on: 1990-06

GB 12409-1990    Geographic grid
地理格网
Category No.:GB Valid Status:superseded
Issued Organization:CSBTS Issued Date:1990-06-23
Implemented Date:1991-5-1 Abolished Date:
Superseded Standard.:GB/T 12409-2009 Geographic grid
Superseded Date:2009-6-1
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CB/Z 205-1990   YB/T 5266-1999   YB/T 5279-1999   YB/T 5280-1999   YB/T 5278-1999   YB/T 5268-1999   GB/T 12385-1990   GB 12387-1990   GB/T 12359-1990   GB 12409-1990   GBJ 213-1990   GBJ 132-1990   GBJ 136-1990   GB/T 12360-1990   GB/T 12361-1990   GBJ 134-1990   GB/T 12362-1990   GB/T 12363-1990   GB 12367-1990   GB/T 12366.1-1990  

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