
Plain bearings - Terms, definitions, classification and symbols Part 4: Basic symbols (ISO 4378-4:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Plain bearings - Terms, definitions, classification and symbols Part 4: Basic symbols (ISO 4378-4:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频