Yu jinjiang
Of course, if you want to reduce the size of the ring from large to small, there is another commonly used method, which is the washer method. Make a precious metal ring with the same material as the ring, which can be padded on the inner wall of the ring, so that it will not have any influence on the ring. When you want to change the size of the ring in the future, you only need to remove the washer, which is very convenient and has a wider scope of application.