features: 1) anti-oil function well. 2) ... ,sewage-disposal industry,steel industry,semi-conductindustry and so on.Applied equipment:mechanical sealing,pressure ... ,gas compressor,reaction vessel,heatexchanger,boiler,filter and so on.Main advantage:First,excellent anti ... NBR,FFKM,VMQ,PTFE,PU and so on (according to your requirements )Operation conditions:Pressure:<=50MPaTemperature:-30°C ~ 200°C NBR O-Ring ...