
Construction contract procedures (VOB) Part C: General technical specifications construction contracts (ATV); Electrical supply systems rated for voltages up to 36 kV
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 construction contracts (ATV); Electrical supply systems rated for voltages up to 36 kV
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻