The purpose of marble square box

Detect the flatness and perpendicularity of components, workpieces, machine tool workbenches, guide rails, and work. The granite square boxes produced by our company have the advantages of: no rust, no magnetization, no deformation, and good quality. Can maintain stability under heavy loads and normal temperatures. The organizational structure of the marble square box is dense, the surface is smooth, and the roughness value is small. After long-term aging, the internal stress of marble disappears, making the material stable and not deformed. Due to the magnetic reaction of non-metallic materials in marble, there is no plastic deformation. Marble square boxes have advantages such as non rusting, non magnetization, invariance, and good quality, and can maintain stability under heavy loads and general temperatures. Marble square box is a benchmark measuring tool made of stone material. Even if it is bumped by heavy objects during use, at most a few stones will fall off.