... saving,seal operation and accurate. It is widely applicable to chemical,petroleum,paint,food,pharmacy and other industries. ... bleaching clay, hydrogenated oil, winterized oil, stearin etc.Petroleum and chemical products: diesel fuel, lubricant, paraffin wax, mineral oil ... various organic acids, alcohol, benzene, formaldehyde etc.Paits and varnishes: resins, varnishes, dyestuff, lacquers etc.Inorganic ...