Polishing and Lapping Materials

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finely dispersed powdery substances, as well as pastes and suspensions having these substances as a base, used in polishing and lapping. The powders used for polishing are classified as hard, such as diamond or corundum, or soft, such as ultramarine and oxides of iron, chromium, and aluminum. Hard powders, with a grain size of 0.1 to 60 microns, are used in lapping and preliminary polishing. Final polishing is done with soft powders, of which metal oxides have the greatest polishing capability. In polishing, the polishing and lapping materials are primarily used in paste and suspension form. Pastes consist of polishing powders, fats, binders, surface-active agents, and other substances. Suspensions are composed of powders, acid and alkaline solutions, and corrosion inhibitors.

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No references found			Polish Socialist Party-Revolutionary Wing Polish Solidarity Day Polish space Polish State Theater of Opera and Ballet Polish Succession, War of the Polish Succession, War of the 1733–35 Polish United Workers Party Polish Uprising of 1794 Polish Uprising of 1830–31 Polish Uprising of 1863–64 Polish Workers Party Polish-Czechoslovak Treaty of 1947 on Friendship and Mutual Assistance Polish-Czechoslovak Treaty of 1967 on Friendship, Cooperation, and Polish-German Agreement of 1934 Polish-Lithuanian Commonwealth Polish-Rumanian Treaty of 1949 on Friendship, Cooperation, and Mutual Polish-Rumanian Treaty of 1970 on Friendship, Cooperation, and Mutual Polish-Soviet War of 1920 Polish-Turkish Wars of the 17th Century polished cotton polished finish polished plate glass Plate glass polished work polished-joint hanger Polishing Polishing and Lapping Materials Polishing Machine polishing roll polishing varnish polishing wheel Polist Politburo Politburo of the Central Committee of the CPSU Politian political political action committee Political Affairs Political and Administrative Map Political Bloc political convention Political Demonstration Political Economy Political Education Rooms Political Exile Political Fighters Political Geography Political Leader political machine Political Map Political Organization of Society Political Organs			polished surface of denture Polished Wholesale Price polished work Polished-Bore Receptacle polished-joint hanger Polishedness polisher polisher polisher polisher polishers polishers polishers polishes polishes polishes polishes polishes off polishes off polishes off polishing polishing polishing polishing polishing polishing agent polishing agent polishing agent polishing agent polishing agent Polishing and Lapping Materials polishing brush polishing brush polishing brush polishing cup polishing cup polishing cup polishing disk polishing disk polishing disk Polishing Film Aluminum Oxide Polishing iron polishing machine polishing machine polishing of teeth polishing of teeth polishing of teeth polishing of teeth polishing off polishing off polishing off polishing roll Polishing slate Polishing snake polishing strip polishing strip polishing strip polishing strip polishing strip Polishing treatment Polishing treatment

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