It enables to improve the productivity by assembling the deflection yoke by making it possible to carry out the preliminary treatment of the end of the Komako day very easily, and the Komako work is provided with a body which is wound on both sides of the body, Wherein the flange is formed at a predetermined height on the flange, and the groove is formed along the lower end of the projection so as to allow the coil wound on the body to be caught.
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