1. The marble platform has a dense organizational structure, smooth and wear-resistant surface, and low roughness values;
2. After long-term natural aging, the internal stress of marble completely disappears, the material is stable, and it will not deform;
3. Acid, alkali, corrosion, and magnetic resistance;
4. Will not get damp or rust, easy to use and maintain;
5. Small coefficient of linear expansion, less affected by temperature;
6. After collision or scratch on the working surface, only pits will be formed, without any protrusions or burrs, which has no impact on the measurement accuracy.