... to 100 °C.Pu (polyurethane rubber) sealsExcellent mechanical properties of polyurethane rubber, wear resistance, high voltage performance ... 45 °C ~ 90 °C.FFKM (perfluorinated rubber) sealsExcellent resistance to chemical corrosion, acid, alkali, ketones, esters, ... si4 fu2 yi3 xi1 zai4) industry, aviation, electrical, chemical, mechanical, instrumentation, metal surface treatment, medicine, food, ...