... area exploitble storage of 200000000 tons Salt, Refined salt, PDV salt ISO 9001-2008 Salt, Refined salt, PDV salt6.2 sq km ... output of 900,000 tons refined saltISO 9001-2008 Package: 25kg, 50kg, 1mtWhite cubic crystal or crystal powder.Wildly used in soda ... +, Mg+,(%)<=0.250.40(SO4)2-,(%)<=0.300.50 Natural refined salt industrial grade