... essential material used in motor, Electric Engine, dynamo, transformer, electromagnetic switch, reactor, Magnetic amplifiers, ballast, relay ... , Yoke flow circle commodityCold Rolled Non Grain Oriented Steel (CRNGO)gradeM50W600,W800,W1000,W1300 ... ,W1300Dsuraface treamentslightly oiled, Non alloy steel sheetThickness0.5mm Widness1000/ 1050/ 1150/1200mmID ...