B35A440 is up to 0.8% -4.8% silicon electrical steel, after hot and cold rolled steel. Usually the thickness of 1mm or less.

B35A250 is up to 0.8% -4.8% silicon electrical steel, after hot and cold rolled steel. Usually the thickness of 1mm or less.

B35A270 is up to 0.8% -4.8% silicon electrical steel, after hot and cold rolled steel. Usually the thickness of 1mm or less.