... treatment, can be use in the circumstance of moisture and oil mist for a long time. After the PTFE membrane treatment the ... with the property of smooth surface, easy cake release, high filter efficiency, save energy, long life, etc.Note: 1. Special specification ... customized.2. maximum width:2.3meters.3. both filter cloth rolls and filter bags are available from HNFILTER Polyeser felt for industrial ...