Arched Corrugated Steel Roof (ACSR) is a typical cold-formed thin-wall space steel structure, which has many advantages that is having dead weight, quick in construction and beautifully shaped.

• 拱形波纹钢屋盖(简称波纹拱)是一种冷弯薄壁空间钢结构，具有自重轻、施工快、造型美观等优点。