1.Material:CRNGO silicon steel 50WW470,600,800,etc 2.Model Number:EI-28,EI-30,EI-35,etc 3.Thickness: ... Variety of Silicon Steel Grade :5 Widely used in the Transformer Core,Ballast Core and other Electrical areas 6 Available specifications ... B27mm C13mm D6mm E8mm F21mm G27mm CRNGO EI41 Silicon Steel Transformer Lamination ROHS