
Magnetic materials. Individual materials. Specification for cold-rolled, magnetic , non-oriented, non-alloyed steel strip delivered in the semi-processed state
出版:British Standards Institution

專家解讀視頻
Magnetic materials. Individual materials. Specification for cold-rolled, magnetic , non-oriented, non-alloyed steel strip delivered in the semi-processed state
出版:British Standards Institution
專家解讀視頻