The physical properties of marble platform: 1. proportion: 2970-3079kgm3 2. Compressive strength: 245-254N / mm2 3. elastic grinding capacity: 1.27-1.47N / mm2 4. linear expansion coefficient: 4.61 * 10 / kWh 5. Water absorption : less than 0.13% 6. Shore: Hs70 above "Precision Engineering" marble platform accuracy reference standard in the advanced countries Shenzhen Dali Health platform, flatness tolerance according to:. JB / T7975-1999 standard: 000 = 1 * (1 + d / 1000) um 00 级 = 2 * (1 + d / 1000) um 0 级 = 4 * (1 + d / 1000) um 级 1 = 8 * (1 + d / 1000) um (d diagonal Line mm) (measured temperature is generally 20 + -2 degrees) good quality of our products, low prices, excellent service to win customers' trust and praise. Welcome new and old customers to discuss cooperation Zhuhai marble platform, your satisfaction is our pursuit Xiangyu marble platform Uses: Widely used for instrumentation, precision tools, machinery and parts of the test, as the most suitable reference surface, especially is the most suitable for high-precision measurements. Precision marble platform: 0,00,000 grade marble platform can be customized according to customer needs.! Shenzhen Dali Health platform, Chung marble platform, Xiangyu marble platform provided by Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm. Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm (www.xywjjxsh.com/) strong, credible, in Shenzhen, Guangdong inventory equipment and industrial supplies industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xiangyu Hardware Machinery and you hand into the brilliant, for a better future!