Marble platform Physical properties: gravity: 2970-3070kg / m compressive strength: 245-254N / m㎡ linear expansion coefficient: 4.61 × 10-6 / ℃ Water absorption: <0.13% Shore hardness: Hs70 more. Marble platform manufacturing and acceptance criteria: Flat Rock manufactured according to national standard GB / T20428-2006, according JJG117-2013 acceptance criteria. Our factory is a manufacturer of high-quality marble platform, marble platform sales throughout the country, materials are used as raw materials authentic Jinan Green marble platform, multi-channel grinding process, the product precision high precision marble platform, structure and stability. Marble platform flatness up to 1.5 microns. All are welcome to visit our users. Marble platform marble platform advantages of using high-quality natural marble material by machining, manual refinements made. Black gloss, structural precision uniform texture, good stability. Strength, high hardness. And has: no rust acid, non-magnetized, the same type, and good abrasion resistance. Can remain stable under heavy load and general temperature. Marble platform is a precision reference measurement tools, natural stone material, for instrumentation, precision tools, machinery and parts of the test, is the ideal plane. Especially for high-precision measurements, because of its unique characteristics, leaving the cast iron plate dwarfs. Xiangyu Hardware Machinery (Figure), marble platform accuracy, Houjie marble platform provided by Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm. Shenzhen Baoan District Songgang Xiangyu Hardware Machinery Firm (www.xywjjxsh.com/)(www.xywjsjsh.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services contribute to the community, and to welcome new and old customers to visit us and sincere cooperation for a better future. Xiangyu Hardware Machinery - your trusted friend, Company Address: Songgang Town Sha Po Industrial District, Shenzhen, Contact: Huang Yongdong.