Silicon steel Wisco largest suppliers of CRGO coils, 30Q120 quality Competitive price Silicon steelCRGO coils Standard: 30Q130, 30Q120Size: 0.2, 0.30. 0.35, 0.4, 0.5 x 914mm, 930mm, 960mm, 980mm1000,1200,950,970mm x C Grain Oriented Silicon steel Seaworthy standard packings