German construction contract procedures (VOB) Part B: General conditions of contract relating to the execution of construction work
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
German construction contract procedures (VOB) Part B: General conditions of contract relating to the execution of construction work
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频