
WIRE ROD FOR COLD DRAWING - TECHNICAL DELIVERY CONDITIONS FOR UNALLOYED SPECIAL STEELS AND FOR ALLOYED SPECIAL STEELS FOR SPRINGS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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WIRE ROD FOR COLD DRAWING - TECHNICAL DELIVERY CONDITIONS FOR UNALLOYED SPECIAL STEELS AND FOR ALLOYED SPECIAL STEELS FOR SPRINGS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻