
German Construction Contract Procedures (vob) - Part B: General Conditions Of Contract Relating To The Execution Of Construction Work
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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German Construction Contract Procedures (vob) - Part B: General Conditions Of Contract Relating To The Execution Of Construction Work
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频