
GO segmental cylindrical bar gauging members over 120 mm up to 200 mm nominal diameter
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
GO segmental cylindrical bar gauging members over 120 mm up to 200 mm nominal diameter
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频