
Constructin contract procedures (VOB) Part C: General technical specifications construction contracts (ATV); Laying of wood block flooring
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Constructin contract procedures (VOB) Part C: General technical specifications construction contracts (ATV); Laying of wood block flooring
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻