1.Bentonite of drilling,paint,coating 2.High qulity of bentonite powder 3.Hot-sale,bentonite of oil drilling,paint,coating etc 1 ... purposeDecolorization and refinementIn petroleum industryDecolorization,refinement,and purification of minerals(diesel,kerosene,gasoline,grease,paraffin wax,white ... Storage:Kraft paper bag interior with PE.The weight : 25±0.25kg per bag.The package and weight also ...