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Marble square box
Marble square box

Marble square box

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....
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Product details

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)