欧美日韩国产免费一区二三播放_三级成人熟女影院_日韩制服诱惑在线_男人天堂日韩精品

Laser rust removal is to use the high energy and high concentration of the laser to irradiate the workpiece to be processed, so that the substrate surface attachments (dirt, oxide scale, rust, organic coating, etc.) absorb the laser energy, melt, vaporize and volatilize , A rust removal method that makes the oil stains, rust spots or coatings on the surface evaporate or peel off instantly, so as to achieve the purpose of purifying the surface of the substrate. Does not damage the substrate.