In general, the commonly used decoration cover in the market is the inner ring of the seat plate: length 31.5cm, width 22.5cm; product outer length 43-46cm (can be adjusted by yourself), width 36cm, hole distance 11-17cm (can be adjusted by yourself). The size of the decorative cover also has the inner ring of the seat plate: width 200mm; the outer length of the product is 470mm, the width is 365mm, and the hole distance is 140mm. Both of these.
The decorative cover uses expansion screws. There is a shell on the outside and it will not show up when you click it on the top, so it looks like there is no trace on the outside. This is the same as that of the plastic steel door. Does the door frame have a fixed width? If there is a hole in the middle of the width, then punch a hole in the corresponding position on the wall, then place the door frame and take the hole and drive the expansion screw in and fasten the shell.