... , Viton, Silicone 4. Good quality and good price Framework oil seal(TC oil seal):1) Made of NBR, Silicon, viton, EPDM, PTFE ... °c ~ +250°c; Working pressure: 0 ~ 32Mpa; Working medium: water, lube, oil, etc; Working speed: ≤ 25M/S;2) Different colors and sizes ... more details, please feel free to contact me. Outside Framework Oil Seal