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GB/T 14839-1993 Active
GB/T 14839-1993 Technical symbols for geochemical exploration
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 14839-1993 |
| CCS | Basic standards and general methods |
| ICS | Geology, meteorology, and hydrology |
| Implement Date | 1994-10-01 |
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$ 42