... steel, wood and plastic. Widely employed in coal mine, downhole coal bunker, coal washery, cement factory, foundary, thermal power ... sintering plant coal gas factory, fertilizer plant, chemicals plant, aluminium plant, alkali factory, steel works, coking plant, pharmaceutical ... coal mine and underground 3.bunker,coal washery,cement plant,4.concrete plant,5.foundry plant,6.fertilizer plant,7.coking ...