12 storey step corridor12层台阶走廊
12层台阶走廊，宽度为6米，长度无限 ，类似道路一样可以拉长，适合住宅楼或者办公大楼等建筑门口摆放拉长，作为景观使用。
The 12-storey step corridor is 12 meters wide and infinite in length. It can be lengthened like the road. It is suitable for the gate of residential building or office building to be lengthened for landscape use.
