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Magnesium sulphate heptahydrate
Mgso4.7h2o 99%min.
Chloride 0.015%max
Fe 0.002% max.
Heavy metal 0.001% max.
As 0.0002% max.
Mgo 16% min
Mg 9.8% min
Zn 0.003%max
Ca 340ppm
Ph 4-6
Structure granule
25kg per bags