Granite (marble) straight ruler
Specifications / Features
Granite (marble) straight ruler of material for Jinan blue, marble ruler is the black gloss, sophisticated structure, texture, uniformity, stability, strength, and high hardness. Granite (marble) straight ruler is made of natural stone material precision reference measurement tools, test instrumentation, precision tools, machinery parts, are ideal datum, especially for the measurement of high precision.Granite (marble) straight ruler after the strict physical test and selection of the granite stone, fine crystal, hard texture. The granite Department of non-metallic materials, no magnetic response, no plastic deformation. Its hardness is high, so the accuracy is good.
Granite (marble) straight ruler uses: mainly used in machine tool, guide and precision work surface flatness, straightness measurement.
Granite (marble) straight ruler with the characteristics and advantages of foot:
1, the rock by long-term natural aging, the organization structure is even, the expansion coefficient is small, the internal stress completely disappeared, not deformation, so high precision.
2, good rigidity, high hardness, wear resistance.
3, are not afraid of acid, alkali erosion, will not rust without oiling, not easy to stick dust, maintenance, convenient and simple maintenance, long service life.
4, there will be no scratches, not by the constant temperature conditions to prevent, at room temperature can also maintain the accuracy of temperature measurement.
5, no magnetization measurements can move smoothly, without Zhise sense, not wet, good flatness.
