We are the professional manufacturer of producing toroidal transformers, EI type transformers, laminated silicon core Our laminated silicon core have the following perfomance:1.Low iron loss2.Cold-rolled oriented core (CRNGO)3.Small in size4.Light in weight5.High efficiency6.Applications:toroidal transformers, magneticamplifier, voltage regulators, instrument transformers,inductors7.Customized ...