Use: Test the flatness of plate, leveling ruler, machine tool working platform, guides and precision work-piece.
用途：检测平板、平尺、机床工作台、导轨和精密工件的平面度、直线度。
2
Introduced the working principle of the no. 2 vertical cutting and settled breadth machine Lingang medium plate, analysed the existed problem that the original breadth machine.
介绍了临钢中板厂2号纵剪定宽机的工作原理，分析了原定宽机存在的问题。
3
The working principle, control system structure of the lower roll moving device on a 3-high plate coiling machine, mathematical model simplification and analysis are introduced.