High Pressure Valve Seat
High Temperture 700°C Valve Seat
MATERISL:GLASS+PTFE、BRONZE+PTFE、BRASS+PTFE、GLASS FIBER20%+GRAPHITE5%+PTFE
Material : TFM
Material : PTFE、TFM、VITION//COATING PTFE、SILICONE//COATING PTFE、HMER、EPDM、NBR