... your requirement Used in engineering industrial Machinery Inspection On Granite Surface PlateMaterial: Granite mainly composition is augite,Plagioclase,few olivine , ... good stability,high strength ,high hardness and so on.It keep high precision in heavy load,being used ... 61×10-6 /°C Shore hardness:above Hs70Bran granite surface plate accuracyrefer advanced leading countriesstandard.flatness tolerance as ...