The replacement steps of the installed image core are as follows:
1. Take out the old painting core and wipe the border with a clean rag.
2. Take out the new painting core and compact it on the border.
3. Fix the new painting core on the border and fix it.
4. Completely install the frame and paint core together and fix them.
5. Put the core on the frame and fix them together with screws.
6. Wipe the core with a rag and re-frame.
Mounting is a unique skill to decorate calligraphy and painting, rubbings and so on. In ancient times, the name of mounting was called "mounting back and mounting surface", also called "mounting" and "mounting pool".