Contact:Jie Manager
Mobile: +86-18763530064
Mobile: +86-18888371288
E-mail:zxjm1288@163.com
Address:West of South Section Road, Lutou village, zhaozhaizi Town, Gaotang County, Liaocheng City, Shandong Province
Marble square box, also known as granite square box or rock square box, is made of Jinan green, black luster, fine structure, uniform texture, good stability, high strength and good hardness. The working surface of marble square box adopts scraping or detailed grinding technology, which is used to measure the straightness and verticality of workpieces and equipment installation
marble square box also has the advantages of good precision, no rust, based on actual report, no magnetization, constant type, powerful and so on. It can maintain stability under heavy load and general temperature
marble square box is used to detect the flatness and perpendicularity of parts, workpieces, machine tool workbench, guide rail and detailed work. Marble square box is a fine benchmark measuring tool made of stone materials. It is an ideal benchmark for the inspection of instruments, fine tools and mechanical parts. Marble square box is especially used for measurement with appropriate accuracy
the granite stone of marble square box, which has been strictly tested and selected, has fine crystal, hard texture, magnetic reaction and no plastic deformation
marble square box is superior to the detailed measurement reference parts made of cast iron and steel, and can obtain high and stable accuracy
physical properties of marble square box: specific gravity 2970-3070kg / ㎡, compressive strength 245-254n / m ㎡, linear expansion coefficient 4.61 × 10-6 / ℃, water absorption
accuracy of marble square box: grade 0, 00 and 000 are available
specification table of marble square box: (non-standard customization can also be made according to customer requirements)
granite square box packaging: Granite square boxes are generally packed in wooden boxes (or according to user requirements)