
Construction Contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV); Repair work on concrete structures
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Construction Contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV); Repair work on concrete structures
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻