Granite Physical characteristics:
Proportion : 2970 ~ 3070kg /
Compressive strength : 245 ~ 254N / m
Strong ground- amount : 1.27 ~ 1.47N / m
Linear expansion coefficient : 4.6 * 10 ~ 6 ℃
Water absorption: 0.13%
Shaw's strength : HS70 above
Granite precision measuring tools, instruments platform, using high-quality " Jinan Green " stone grinding by machining and hand made with high precision, long life, acid and alkali, is not easy deformation, etc., suitable for measurements of mechanical plant. gage also called marble granite measuring tools, measuring rock, granite measuring tool.
Concentricity Granite V-frame for rotating parts, roundness, symmetry, runout measurement, generally in pairs supply related products : granite square box, granite square foot, granite parallel regulation, foot rectangular granite and so on.
Production units: Hebei Huamin Metallurgical Machinery Co. Phone: 0317-8387999 Fax : 0317-8080188http: //www.hbhmyj.comhttp: //www.hbhuamin.com mail :. Hbhmyj @ 126 com