... well.7, Advantage: Polyester or nomex layers to enable high temp and pressure than original rubber hose does and the silicone ... can bear the high low temperature, non-toxic tasteless, insulation, anti-ozone, bear burning , oil resistantanceWe can offer the following silicone ... can bear the high low temperature, non-toxic tasteless, insulation, anti-ozone, bear burning , oil resistantance