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| Chinese National Standard Category: Special non-metal ore |
| English Title: | Diamond Grading |
| Chinese Title: | 钻石分级 |
| Standard No.: | GB/T 16554-1996 |
| Category No.: | D58 |
| Issued by: | |
| Issued on: | 1996-10-07 |
| Implemented on: | 1997-5-1 |
| Status: | superseded |
| Superseded by: | GB/T 16554-2003 Diamond grading |
| Superseded on: | 2003-11-1 |
| Abolished on: | |
| Superseding: | DZ/T 0046-1993 |
| Word Count: | 7000 words |
| Similar Standards: | GB/T 18303-2008 GB/T 18303-2001 GB/T 16554-1996 |
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