
Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO 4230:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻