
German Construction Contract Procedures (vob) - Part C: General Technical Specifications In Construction Contracts (atv) - Laying Of Parquet Flooring
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 Construction Contracts (atv) - Laying Of Parquet Flooring
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻