Seal, Seal Strip, O Ring, PU Ring, PU Strip, PU Piston, Buffering Pad, Y Shape Seal, Irregular Seal, Rotary ... steel industry,semi-conductindustry and so on. Applied equipment:mechanical sealing,pressure vessel,gas compressor,reaction vessel,heatexchanger,boiler,filter and ... long service life.Material:Viton , EPDM,NBR,FFKM,VMQ,PTFE,PU and so on (according to your requirements )Operation conditions: ...