
Execution of steel structures and aluminium structures Part 2: Technical requirements for steel structures; German and English version prEN 1090-2:2015
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Execution of steel structures and aluminium structures Part 2: Technical requirements for steel structures; German and English version prEN 1090-2:2015
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频