
Metallic Materials - Hardness Test - Rockwell Superficial Test (Scales 15N,30N,45N,15T,30T,45T And Hr30tm For Thin Products)
出版:Association Francaise de Normalisation

專家解讀視頻
Metallic Materials - Hardness Test - Rockwell Superficial Test (Scales 15N,30N,45N,15T,30T,45T And Hr30tm For Thin Products)
出版:Association Francaise de Normalisation
專家解讀視頻