
METALLIC MATERIALS - BRINELL HARDNESS TEST - PART 1: TEST METHOD (ISO 6506-1:2014)
出版:Comite Europeen de Normalisation

專家解讀視頻
METALLIC MATERIALS - BRINELL HARDNESS TEST - PART 1: TEST METHOD (ISO 6506-1:2014)
出版:Comite Europeen de Normalisation
專家解讀視頻