
Iron And Steel Products - Conventional Rockwell Hardness Tests - Rockwell Scale Hrb' For Thin Products - Rockwell Scales N And T For Skin Hardness
出版:Association Francaise de Normalisation

專家解讀視頻
Iron And Steel Products - Conventional Rockwell Hardness Tests - Rockwell Scale Hrb' For Thin Products - Rockwell Scales N And T For Skin Hardness
出版:Association Francaise de Normalisation
專家解讀視頻