... weight 3.simple structure 4.small magnetic flux leakage ED/XD/SD silicon steel sheet iron core Feature It ... can also be used to 400 hz power.ED/XD/SD silicon steel sheet iron core Application Suitable ... filtering choke ring and audio choke ring, etc. ED silicon steel sheet iron core ParamentersED/XD/SD silicon steel ... /XD/SD silicon steel sheet iron core Material ED/XD/SD iron core made of prme CRGO ...