Use:In coordination with the leveling instrument,optical flatness measuring instrument and electronic leveling instrument to test the flatness of plate,leveling ruler,machine tool working platform,guides and precision workpiece.

• 用途：用途：配合水平仪、光学平直仪、电子水平仪用来检测平板、平尺、机床工作台、导轨和精密工件的平面度。