yzy stair

This is a spiral staircase, a spiral staircase that goes down from the ground to the ground.This is based on the experience of watching previous concerts.There was a stage with music on both sides, and in the middle of the stage was a staircase that could be raised and lowered.From the preparation room, the singer would go up the stairs to the top of the stage.

 main view

 top view

 left view

 bottem view