Granite slabs have the advantages of high precision, rust resistance, non magnetization, invariance, and good properties. Granite slabs can maintain stability under heavy loads and general temperatures. The granite flat measuring tools produced by our company are made of granite flat materials processed by machinery and finely ground by hand.

Granite flat plate: It is a benchmark measuring tool made of stone material, which is an ideal reference surface for the inspection of instruments, tools, and mechanical parts. Granite flat plate is especially used for high-precision measurement. Granite slabs are made from underground rock layers and have undergone billions of years of natural aging, resulting in a stable shape without worrying about deformation due to conventional temperature differences. Granite slabs have undergone rigorous physical testing and selection of granite materials, resulting in fine crystallization and a hard texture. Due to its non-metallic nature, granite exhibits magnetic reactivity and no plastic deformation. Granite slabs have high hardness, therefore they have good precision retention.

Granite slabs: Even if rock tools are hit by heavy objects during use, at most a few pieces of gravel will fall off. Granite slabs are superior to measuring reference parts made of cast iron and steel, and can achieve high and stable accuracy. The 1000 × 630mm '00' grade granite slab produced by our company can still maintain its original accuracy after being stored for one year.

Characteristics and advantages of granite slabs:

1. After long-term aging, the rock has a uniform organizational structure, low coefficient of linear expansion, disappearance of internal stress, and no deformation, resulting in high accuracy.

2. Good rigidity, high hardness, and strong performance.

3. Not afraid of acid and alkali erosion, will not rust, does not need to be oiled, is not easy to stick to dust, easy to maintain, and has a long service life.

4. No scratches, not hindered by constant temperature conditions, and able to maintain temperature measurement accuracy at room temperature.

5. Non magnetized, able to move smoothly during measurement, without any sluggishness, not affected by moisture, and the plane is properly weighed.