Specifies the grades of thin non-oriented magnetic steel sheet and strip in nominal thicknesses of 0,05 mm, 0,10 mm, 0,15 mm, 0,20 mm, 0,25 mm and 0,30 mm, and of thin grain-oriented magnetic steel sheet and strip in nominal thicknesses of 0,05 mm, 0,10 mm and 0,15 mm.