
METALLIC MATERIALS - ROCKWELL HARDNESS TEST - PART 3 - CALIBRATION OF REFERENCE BLOCKS (ISO 6508-3:2015)
出版:Comite Europeen de Normalisation

专家解读视频
METALLIC MATERIALS - ROCKWELL HARDNESS TEST - PART 3 - CALIBRATION OF REFERENCE BLOCKS (ISO 6508-3:2015)
出版:Comite Europeen de Normalisation
专家解读视频