
Weldable Steel Drip Forged Articles For Boilers And Pressure Vessels - Carbon And Carbon-manganese Steels - Grades And Types
出版:Association Francaise de Normalisation

專家解讀視頻
Weldable Steel Drip Forged Articles For Boilers And Pressure Vessels - Carbon And Carbon-manganese Steels - Grades And Types
出版:Association Francaise de Normalisation
專家解讀視頻