1. First, clean the surface to be pasted to make it clean, smooth, flat and dry.

2. Measure the height of the doors and windows, and cut off the sealing strip with scissors according to this height.

3. Peel off a small section of backing protective paper, install the sealing strip to the correct position and press it tightly, and try to align with the top edge.

4. Keep peeling off the protective paper on the back so that the sealing strip extends downwards along the frame and presses it continuously. Be careful not to stretch.

5. Use the same steps to install the horizontal sealing strip, paying attention to the anastomosis at the corner joints, and there should be no gaps between the connections.