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Dry A filter manufactured from cotton wool, glass-fiber fabric, pleated paper, foamed polyurethane, cellular polythene, or other suitable materials. As the name suggests, the filter is dry in nature and has no oil coating. [Pg.1409]

See other pages where Polythene fiber is mentioned: [Pg.109] [Pg.109] [Pg.340] [Pg.315] [Pg.134] [Pg.150] [Pg.424] [Pg.402]