1, the granite platform in accordance with national machinery industry standards: JB/T7975-1999 manufacturing. 

 2, granite precision measuring tools, equipment platform, high quality natural stone by hand-grinding machining and made with high precision, long life, acid, structure compact, hard, stable performance, easy deformation, independent of temperature effects, etc., for benefit of precision mechanical engineering test measurements. 

 3, the granite has a higher intensity than marble, hardness, wear resistance, corrosion resistance, weather resistance performance, easier maintenance; granite smaller change in the general pattern, color stable, easier to assemble a large area. In the measurement test, the granite slab more attention by people and preference, especially in the high-precision test applications, has become a fashion, become a symbol of the degree of luxury. 
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