technical standard for leather grading
| Quality Coefficient | Grade | Representative Coefficient |
|---|---|---|
| 100--95.1 | A | 97 per cent |
| 95--90.1 | B | 93 per cent |
| 90--85.1 | C | 88 per cent |
| 85--80.1 | D | 83 per cent |
| 80--75.1 | E | 78 per cent |
| 75--70 | F | 73 per cent |
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