| planeness: | Visual leveling |
|---|---|
| Base strength: | 50 |
| Acid and alkali resistance: | No significant change |
| Wear resistance: | good |
| Stamping resistance: | 50 |
| Pencil hardness: | 2h |
| Specifications: | 30 kg / group |
| Color: | Polychrome |
| Net weight of single piece: | 30000 |
| quality guarantee period: | 24 |

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