
German construction contract procedures (VOB) Part C: General technical specifications in constructions contracts (ATV) - Clearing of unexploded ordnance
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
German construction contract procedures (VOB) Part C: General technical specifications in constructions contracts (ATV) - Clearing of unexploded ordnance
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频