内筒直径81mm,内筒深度20mm，外边直径113mm，如果你需要定制尺寸，可以在评论区评论我会及时更新

The inner diameter is 81 mm, the depth of the inner cylinder is 20 mm, and the outer diameter is 113 mm. If you need custom sizes, please leave a comment in the comment section, and I will update it in a timely manner.

尺寸（剖面）如图所示，The dimensions (cross-section) are shown in the figure：