... , 0.23mm, 0.27mm, 0.3mm and 0.35mm Model: Core-folled(R)CharacteristicThe cross-section is symmetrical and in shape ... leakage, so its magnetic performance is best of all. ApplicationStep wound core is widely used in 50Hz transformers, current transformers, reactors, chokes ... equipment The customers samples and drawings are always welcome. Step Wound Core For Power Transformer