PTFE seal gasket Chemical stability excellent anti-aging performance with ... with good credit and competitive price.We can supply PTFE ROD,SHEET,SKIVED,TUBE,PIPE,FILM,etc,together with HDPE,PP,POM,PVC ... ,NYLON ROD AND SHEET.70% of our products are exported ... :2004 environment management,GB/T28001-2001,SGS test. expanded ptfe sheet gaskets