... ,food industry,sewage-disposal industry,steel industry,semi-conductindustry and so on. Applied equipment:mechanical sealing,pressure vessel,gas ... compressor,reaction vessel,heatexchanger,boiler,filter and so on. Main advantage:First,excellent anti-chemical character ... ,long service life. Material:NBR,FFKM,VMQ,PTFE,PU and so on (according to your requirements ) Operation conditions: ...