This type of surface plate or measuring tool is made of the Jinan black with the characteristics of fine structure, uniform structure, good stability, as well as high strength and hardness.Physical Property
|Coefficient of Linear Expansion
1. After the long-term natural aging, the granite inspection plate is uniform in structure, and has low coefficient of linear expansion. The internal stress has completely disappeared, which means no deformation will be found. Therefore, our product offers high precision.
2. Our granite measuring tool not only has good rigidity, high hardness, but also superior abrasive resistance. Besides that, it is resistant to dust, rust, acid and base. You don’t have to coat it with oil. This product is easy to maintain, and durable in use.
3. It has no scratches after having been used for a long time. Our surface measurement plate is not limited to the constant temperature, and it can maintain the measuring precision even in the room temperature.
4. This granite surface plate or measuring tool will not be magnetized. It moves smoothly, and will not be affected by moist.
Precision Calibration Tools | Granite Platform | Industrial Manufacturing Accessories