999久久久免费精品播放,色欲天堂在线观看,办公室激情娇喘嗯啊老师 ,99久久久久久久免费A片观看

Iron is used in many items, but iron is easy to rust. Once it rusts, its effect is greatly reduced. If it is thrown away every time it rusts, it is not only environmentally friendly, but also wasteful. So how can we to solve this problem? The laser cleaning machine can perfectly solve this problem, it can quickly remove the rust on the items.

         Laser cleaning machines mainly use high-power lasers to burn off metal surfaces, such as rust, paint, etc. At the same time, they use metal reflection characteristics, which will not damage the substrate (provided that the parts themselves are not damaged), as long as you sweep the rust with the laser cleaning machine. part, the rust will be completely removed.

         The principle of this laser cleaning machine is that when the rust is subjected to high temperature, it will evaporate instantly, and after the plasma is separated, the rust-removing part will not be damaged even when exposed to the laser due to the high reflectivity of the underlying metal to light. Therefore, this laser cleaning method is effective and safe, even