| http://www.w3.org/ns/prov#value | - As additives for the backing layer, inorganic pigments such as magnesium silicate, calcium carbonate, aluminium silicate, barium sulfate, clay, molybdenum disulfide, graphite, titanium oxide and so on; organic finely pulverized grains of benzoguanamine resins, polyethylene terrephthalate, etc.; and additives to be used in a magnetic layer, e.g., an abrasive, a surface active agent, a lubricant, et
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