Soundness in microstructures with homogeneous composition, littlegregation and lower MgO content. Stable and even lasting with high absorption of Mg.Much smaller and globular graphite and high nodularization efficiency when treated. Nodularization temperature is recommended at 1400-1450 when melted from a cuppola,or at 1450-1500 when from an electric furnace. Added at 1.5%-1.6% when sulphur in the liquid cast iron is as high as 0.065-0.09%, or 1.4%-1.5% when sulphur is as high as 0.05-0.065%. Supplied in the form of grain(5-25mm) or following special requirement. Packed in plastic braids with inner wet resistant plastic film. Per packed parcel is 25kg n.m.