Handheld laser: SUP20S/C/21C/20T collimator replacementEnglish version注意：Note:1.更换时请注意现场环境1. Pay attention to the site environment when replacing2.准直凸面朝外（即安装后平面朝向光纤方向）2. Collimated convex surface facing outwards (i.e. flat surface facing the direction of the fibre after installation)3.各型号准直镜的规格请参照对应

Air plasma cutting machine is a new type of thermal cutting equipment. Its working principle is to use compressed air as working gas and hightemperature and high-speed plasma arc as heat source to partially melt the metal to be cut, and at the same time use high-speed airflow to melt the molten meta