What are the characteristics of the spirit level

Light weight, 1.5kg/m less than 2 meters, 3kg/m above 2 meters. A 6-meter-long flat ruler weighs only 18 kilograms, which can be easily used by one person. Not easy to deform: the bending point of general steel material is, the bending point of cast iron is, while the bending point of magnesium-aluminum alloy is equivalent to 3-4 times, which has the effect of bending resistance and deformation resistance. The bending index far exceeds other materials.

The spirit level is easy to keep: it can be suspended or placed horizontally, and its straightness and parallelism will not be affected by long-term horizontal placement. In addition, the aluminum-magnesium lightweight flat ruler is not easy to rust: no oil is required during use, and if it is not used for a long time, a thin layer of general industrial oil can be lightly applied when storing.