Generally, there are three glass tubes in the level, and there is a bubble in each glass tube. Put the level bar on the object to be measured, which side of the bubble of the level ruler deviates to indicates that the side is on the high side, that is, it is necessary to lower the height of the side, or increase the height of the opposite side, and adjust the bubble to the center, which indicates that the measured object is horizontal in this direction. In principle, both horizontal and vertical are in the center, and the bubble with angle is naturally in the center. In general, the horizontal angle of the bubble is measured by measuring the horizontal angle of the water bubble. In addition, according to the principle of determining a plane by two intersecting lines, the level of the plane can be determined only by measuring two non parallel positions in the same plane

The level is used for inspection, measurement, marking, equipment installation and industrial engineering construction.
The level is available in high, middle and low grades. The ordinary level is aluminum alloy, the middle level is yellow, and the high-grade is black. All styles are with strong magnetism.

Characteristic：
It is less than 1.5kg/m less than 2m and dao3kg / m above 2m. A 6-meter-long flat ruler is only 18 kg, which can be easily checked by one person. Not easy to deform: the bending point of general steel material is 30kg / mm2, that of cast iron is 38kg / mm2, and that of magnesium aluminum alloy is 110kg / mm2, which is equivalent to 3-4 times. It has the effect of bending resistance and is not easy to deform. The bending resistance index of magnesium aluminum leveling ruler is far beyond that of other materials. Level bar with horizontal bubble, can be used for inspection, testing, debugging whether the installation level of equipment

The level is with magnetic or without magnetic ones, design can be customized according to special requirements.
The size /length/thickness/wideness/weight are as below: