It is very difficult and complex, so how to make a completed quality controlling system and using in a efficient way is a very important part in the steel structure main-construction building.

• 钢结构主承建项目质量控制复杂、难度较大,如何建立一套完整的质量控制体系,进行有效的质量控制是钢结构主承建施工中一个十分重要的方面。