The quality of rice paper has nothing to do with thickness. It does not mean that thick rice paper is of good quality. Works mounted on rice paper that are too thick are prone to the problem you encountered - the mounting is too thick and easy to fold. Before mounting, you can check whether the work is double-layered or multi-layered. If it is double-layered, you can manually peel off the back layer and then mount it. Generally, the painting core will not be damaged. If it is a thickened single announcement, you can use Yun Feiyang's method upstairs. Or, use thicker materials such as linen for framing. Try to keep the thickness of the painting core and the inlay of the mounted work consistent, so that the mounted piece will not easily break. Furthermore, when applying wax and patina to the mounted piece, use a little more effort to make the mounted piece softer and less likely to break.