... O ring circle diameter (C.D) Minimum0.44mm. O ring outer diameter Maximal 530mm2. Color: black, white, yellow, brown ... resistance, Oxygen resistance, Ozone resistance, Weathering resistance, Flame resistance, Heat resistance, Low temperature resistance, Oil and ... Strength Resistance, Gas Impermeability Resistance, Oxygen Resistance, Flame Resistance,Heat resistance,Low and High temperature Resistance, ...