What is the importance of calibrating the spirit level？

How to keep the spirit level？

This kind of level can be used for both short-distance measurement and long-distance measurement. It also solves the disadvantage that the existing level can only be measured in open places and is difficult to measure in narrow placesIt has the advantages of accurate measurement, low cost, convenien

The spirit levels is mainly used to detect or measure the levelness and verticality, which can be divided into aluminum alloy square tube, I-shaped, die-casting type, plastic type, special-shaped and other styles. The length ranges from 5CM to 300CM multiple specifications; The straightness of the s