Jinan Green Marble granite marking platform marble mechanical components marble square

The marble platform is taken from the underground high-quality rock layer
After hundreds of millions of years of natural aging, the shape is extremely stable
There is no need to worry about deformation due to conventional temperature difference
After strict physical test and selection, the granite has fine crystal, hard texture, compressive strength of 2290-3750kg / cm2 and hardness of Mohs hardness grade 6-7
It is extremely wear-resistant, acid and alkali resistant, has high corrosion resistance and will never rust
Because marble is a non-metallic material, it has no magnetic reaction and no plastic deformation
Its hardness is 2-3 times higher than that of cast iron (equivalent to HRC & gt; 51), so it has good accuracy retention
In use, even if the rock tool is knocked by heavy objects, at most a few stones will fall off, instead of damaging the accuracy due to deformation like metal tools
It is superior to the precision measurement reference parts made of high-quality cast iron and steel, and can obtain high and stable accuracy