- One corner of the courtyard of a fishpond also ask, clean water Huanhuandicong corrugated wall outflow leisurely fish in the fish pond.
- Improvement to idlers of belt conveyor with corrugated wall
- Improvement to large angle belt conveyor with corrugated wall
- The shutters thumped the wall in the wind.
- His brow corrugated with the effort of thinking.
- The picture on the wall is crooked.