It is an entrance hinge door that connects the outside of the school and the multipurpose classroom. Since it is connected to the outside, it has become more convenient to enter and exit the multipurpose classroom.

The hinge door is a door with a motor lock handle that can be constructed and has high safety.

It is finished with a rubber gasket on the side of the hinge door, so it is highly airtight and airtight, so it has a good blocking effect from the outside. In addition, thanks to the rubber gasket, injuries can be prevented in hand traffic accidents that can occur due to brief carelessness.