
STEELS FOR QUENCHING AND TEMPERING - PART 2: TECHNICAL DELIVERY CONDITIONS FOR NON ALLOY STEELS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
STEELS FOR QUENCHING AND TEMPERING - PART 2: TECHNICAL DELIVERY CONDITIONS FOR NON ALLOY STEELS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻