The Company's website www.thjmjt.com marble platform, Precision marble slab platform using high-quality "Jinan Green" stone grinding by machining and hand made. Black gloss, structural precision, even texture, good stability, high strength, high hardness, high accuracy can be maintained under heavy duty and general temperature, and has no rust, acid, wear resistance, is not magnetized, the same type and so on. ? Marble platform suitable for machine shop measuring tools. ? Marble platform physical properties: specific gravity: 2970 ~ 3070kg / m 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. ? Marble platform support: the purchase of a marble tablet platform, we have to buy some accessories marble platform, such as: marble slab platform support bracket, or jack, is leveling must use the accessory marble slab platform. ? Marble platform features and and advantages:? 1, the long-term natural aging rock, uniform organizational structure, small linear expansion coefficient, internal stress completely disappeared, no deformation, so high accuracy. ? 2, rigid, high hardness, wear resistance. ? 3, not afraid of acid, alkaline liquid material erosion, will not rust, do not oiled, easy to stick dust, maintenance, convenient and simple maintenance, long service life. ? 4, will not scratch, without a constant temperature to prevent, at room temperature can be maintained temperature measurement accuracy. ? 5, no magnetization measurements can move smoothly, without Zhise sense, not damp the impact plane that set good.