| Test Items | Unit | Index |
| Impact Resistant | Kg.cm | 55 |
| Anti-pressure Intensity | MPa | 85 |
| Abrasion-Resistant(500g/1000r) | g | ≤004 |
| Bonding Intensity | class | 1 |
| Hardness of Pen | H | 1 |
| Surface Resistance | 104-106 |
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