The object of the present invention is to provide {HEAD ~ a technology} particularly for enabling stable achievement of high yield stress of 300 N/mm2 or higher with good stability in a steel sheet for {TAIL ~ picture tube band} which is to be made high in strength and permeability without heavy addition of Si or utilization of Ti or other precipitation strengthening elements 
The object of the present invention is to provide { HEAD ~ a technology } particularly for enabling stable achievement of high yield stress of 300 N / mm2 or higher with good stability in a steel sheet for { TAIL ~ picture tube band } which is to be made high in strength and permeability without heavy addition of Si or utilization of Ti or other precipitation strengthening elements
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