
High-strength Structural Bolting Assemblies For Preloading - Part 7: System Hr - Countersunk Head Bolt And Nut Assemblies
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
High-strength Structural Bolting Assemblies For Preloading - Part 7: System Hr - Countersunk Head Bolt And Nut Assemblies
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频