B30G120 steel properties : Low iron loss, magnetic flux density under a strong magnetic field (magnetic induction) high, smooth surface, uniform thickness and smooth, punching resistance

B27G130 steel properties : Low iron loss, magnetic flux density under a strong magnetic field (magnetic induction) high, smooth surface, uniform thickness and smooth, punching resistance

B35G135 steel properties : Low iron loss, magnetic flux density under a strong magnetic field (magnetic induction) high, smooth surface, uniform thickness and smooth, punching resistance