Characteristics of marble ruler

Marble, after long-term aging, has a uniform structure and texture, a small expansion factor, and no internal stress or deformation.

Good rigidity, therefore the accuracy retention is very good.

Not affected by temperature, with good flatness retention, and no need to worry about deformation and accuracy changes in appearance due to temperature fluctuations.

The marble ruler will not have scratches or magnetic reactions, and can move smoothly back and forth during testing without any sluggishness or inflexibility.

Not afraid of acid and alkali erosion, will not rust, maintenance and upkeep are also very simple, with a long service life.

Each marble ruler has a weight reducing hole for easy access during use.