
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)

專家解讀視頻
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)
專家解讀視頻