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Cold rolled non oriented electrical steel sheet in coil, also called silicon steel coil, contains 0.5% to 3.0% silicon. Electrical steel coil with thickness 0.5mm is once formed through cold rolling the 2 to 3mm thick hotrolled coil which has already been chemically cleaned with acid.link:https://www.chinasiliconsteel.com/non-oriented-silicon-steel/35ww270-35ww300-crngo-coils.html