Silicon steel coil 1.Produced by Wuhan Iron & Steel Corporation (WISCO) ... used in motor, Electric Engine, dynamo, transformer, electromagnetic switch, reactor, Magnetic amplifiers, ballast, relay, Yoke flow circle Products All ... the request of customerElectric Engine, dynamo, transformer, electromagnetic switch, reactor, Magnetic amplifiers, ballast, relay, Yoke flow circleGrain-oriented silicon ...