
High-strength Structural Bolting For Preloading - Part 7: System Hr - Countersunk Head Bolt And Nut Assemblies
出版:Association Francaise de Normalisation

专家解读视频
High-strength Structural Bolting For Preloading - Part 7: System Hr - Countersunk Head Bolt And Nut Assemblies
出版:Association Francaise de Normalisation
专家解读视频