It can support two-sided objects or three-sided objects.

The original intention is to provide support for the acrylic sheets used in carton sealing. The acrylic sheets are pasted with glue to achieve carton sealing.

可以实现两面物体的支撑，也可以实现三面支撑

初衷是为了给封箱使用的亚克力板粘贴支撑，通过胶水粘贴亚克力板，实现封箱