
Contract Procedures For Building Works - Part C: General Technical Specifications For Building Works - Jet Grouting Works
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Contract Procedures For Building Works - Part C: General Technical Specifications For Building Works - Jet Grouting Works
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频