1) According to the design requirements, use the ink line to eject the position where the line angle needs to be made, and correct the horizontal and vertical directions.
2) Use a notch to cut the board into notches at the corners of the grooves. The thinnest part of the notches is not less than 15%.
3) The convex line angle should be cut according to the design size, and the line angle and the two sides of the corresponding insulation board should be brushed with a piece of interface agent, and then coated with a special adhesive to make it stick firmly.
