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| We Offer You Varieties Of Granite As A Choice | |||
| ITEM | SOUTH AFRICAN BLACK | JINAN BLACK | INDIAN BLACK |
| Samples |  |  |  |
| DENSITY (g/cm³) | 2.93 | 3.07 | 3 |
| Water absorption rate (%) | 0.1 | 0.13 | 0.022 |
| Linear expansion coefficient (10-6/℃) | 9.07 | 5.7~7.34 | 6.476 |
| Bending strength (MPa) | 22 | 37.48 | 33.9 |
| Compressive strength (MPa) | 240 | 262.2 | 296 |
| Modulus of Elasticity (104MPa) | 10 | 10 | 9.11 |
| Poisson's ratio | None | None | None |
| Shaw Hardness | ＞Hs70 | ||
