... 180C ~ + 260 C 4.ISO9001 PTFE GasketsPure PTFE, Graphite Filled, Fiberglass Filled, Bronze FilledPTFE Gaskets is made by plunger ... dielectricity. Lead insulating sleeve, corrosion-resistant SHEET gaskets, and corrosion-resistant insulating SHEET gasket for different corrosive conditions, heat exchanger. ... (mm )10mm ~ 300mm10mm ~ 300mm10mm ~ 300mm10mm ~ 300mm10mm ~ 300mm10mm ~ 300mm PTFE Gasket SHEET