This is a classroom that teaches about 3D printer equipment. Folding doors were installed as a temporary wall to utilize the space in the classroom. In order not to disturb the classrooms on both sides, the same design as the regular wall is made of plywood instead of transparent glass so that it can be used as the same wall as the wall.

Folding doors made of opaque plywood do not interfere with classes in both classrooms when opened, but if necessary, folding doors make two spaces one space so that they can be used as large classrooms.

This folding door can be manufactured not only with glass but also with opaque materials such as plywood and steel plates.