- Material:Viton(FKM), Poly (ACM), NBR etc...
- Resistance:heat, cold, ozone, harsh chemical, oil, good tear, abrasion, weathering resistance, etc..
- Application:All type engines
- Working temperture:Viton -15°C~250°C
- Working temperture:Poly -18°C~~150°C
- Working temperture:NBR -35°C~120°C
Valve stem seal