1.Material:CRNGO silicon steel 50WW470,600,800,etc 2.Model Number:EI-28,EI-30,EI-35,etc 3.Thickness:0.5mm ... CRNGO silicon steel sheet ROHS 2 Thickness: 0.5mm or 0.35mm 3 Wide ranges of size are available:EI28,EI30,EI35 ... B35A440C)Tai-steel :50TW800, 50TW600, 50TW1000, 50TW470D)Ma-steel:M50W470,M50W6001 Size: A41mm B27mm C13mm D6mm E8mm F21mm G27mm CRNGO EI41 Silicon Steel Transformer Lamination ROHS