It's extremely wear-resistant, acid, alkali, have high corrosion resistance, never rust. The granite is non-metallic material, so it has no magnetic response, no plastic deformation. The hardness is of 2-3 times higher than cast iron (equivalent to HRC) 51), thanks to the deformation and destruction of accuracy.
It maintaining good accuracy. Even rock tools in use by heavy bump, just a few grains ballast out only, and not as metal tools, the superior quality cast iron and steel making precise benchmark components to obtain high and stable accuracy. Our plant the production of '00 'level marble platform, even set it aside a year later, it can still maintain the original precision of the same.