
FILLER METALS FOR ARC WELDING OF CREEP-RESISTING STEELS; CLASSIFICATION, DESIGNATION, TECHNICAL DELIVERY CONDITIONS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
FILLER METALS FOR ARC WELDING OF CREEP-RESISTING STEELS; CLASSIFICATION, DESIGNATION, TECHNICAL DELIVERY CONDITIONS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻