激情综合色五月丁香六月亚洲,亚洲自偷自拍熟女另类,清纯 唯美 亚洲 自拍 小说,啊轻点内射在线视频

Safety precautions for plasma cutting power cutting gun

1. Before starting, you should read the manual carefully to understand the performance and structure of the machine. Those who don't understand can't use it. 2. The wi...

Correct use of cutting gun

1. The cutting gun and its components are all vulnerable parts, especially electrodes, nozzles, protective caps, distributors, water cores, etc. During the cutting process, pay ...

Power supply selection method

Choose the method of plasma power supply, multiply the thickness of the board by 10 times, it is the cutting current of the power supply. If you want to cut carbon steel with a ...

Several methods of cutting stainless steel and aluminum

For cutting stainless steel, H35 dry cutting is currently the main method. The advantages are high cutting efficiency and good cutting quality. On the one hand, the disadvantage...