The marking and lettering on the scale ring and tailstock sleeve on the machine tool have been produced in Yangzhou Huaguang Metal Craft Factory with unique new technology engraving and engraving method. Features: 1 Introduce foreign advanced technology, the lines are engraved with digital size, width, depth, black and white, clear and beautiful, and ensure quality. 2 does not damage other smooth surfaces. 3 low cost. Welcome