CCTG法国通用技术规范第4分册第3卷-中文
公共工程合同通用技术条款手册(C.C.T.G.)第4分册第3卷:钢结构用轧制钢材
General Technical Specifications for Public Works Contracts (C.C.T.G.) Volume 4, Part 3: Rolled Steel for Steel Structures
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General Technical Specifications for Public Works Contracts (C.C.T.G.) Volume 4, Part 3: Rolled Steel for Steel Structures