The center of the brush is aligned with the label and the two sides are symmetrical. The marking brush is perpendicular to the surface of the container. The overlap gap of the pressure brush sweeping the container is: a single pressure brush is 10mm-15mm, and a combined pressure brush is 5mm-10mm. The distance between the cleaning brush and the sponge is 1mm~2mm. Adjustment of the pressure bottle head. The press head should be 20mm lower when there is no bottle than when there is a bottle.