... , 350WW310 4) Applicable to all kinds of iron cores for power transformers. StandardDIN, GBGrade50TW350,50TW400,50TW470,50TW600,50TW800Thickness0. ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); EI-41 lamination for transformer Verified Information This information is Verified by TÜV Rheinland ... Silicon Steel Slit Coil 9,600 Tons / Year Transformer Core 9,000 Tons, Ballast Core 3,000 Tons, ...