Zhongshan, Guangzhou marble platform marble platform _ _ Xiangyu Hardware Machinery (View) provided by Shenzhen Songgang Xiangyu Hardware Machinery Firm. Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm (www.xywjjxsh.com/) is specialized in the "shelves, mold frame, gantry frame, table, table lines, tools, cabinets, tools, vehicles," the enterprise, the company of " honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Huang Yongdong. Features marble platform mainly accuracy and stability, easy maintenance because: the organizational structure of dense marble slab marble platform Zhuhai, smooth surface wear, small roughness value; a marble through a long-term natural aging, internal stress completely disappeared, material stability, not deformed; acid, alkali, corrosion resistance, anti-magnetic; not damp rust Dongguan marble platform, easy to maintain; linear expansion coefficient, little affected by temperature; Face by collision or scratch, the only produce pits, no ridges, burrs, no influence on the measurement accuracy. marble slab main disadvantage is not to put too much impact, beat, high humidity will be deformed, moisture is 1%. marble platform is made of natural stone precision reference measurement tools material, instrument tables, precision tools, machinery and parts of the test Zhongshan marble platform, is an ideal base, especially for high-precision measurements of marble platform, due to its unique characteristics, leaving the cast iron plate dwarfs. marble platform for industrial production and laboratory measurements. The main mineral components of pyroxene, plagioclase, a small amount of olive, biotite, and trace magnetite, black gloss, structural precision, after hundreds of millions of years of aging, uniformity, stability, high strength, high hardness, high accuracy can be maintained under heavy load. stents marble slab marble platform (platform) for industrial production and laboratory measurements. The main mineral components of pyroxene, plagioclase, a small amount of olive, biotite, and trace magnetite, black gloss, structural precision, after millions of years of aging, uniformity, stability, high strength, high hardness, heavy load while maintaining accuracy. Granite plate (platform) Physical properties: flatness tolerance by GB4987-85 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 mm) (measured temperature is usually 20 ± 2 ℃) marble plate (platform) specific gravity: 3070kg / m2 compressive strength : 245-254N / m linear expansion coefficient: 4.61 × 10-6 ℃ Water absorption: <0.13% Shore hardness: Hs70 more