Cooperate with CIMC,TPCO, Tianjin Bohai Oil,etc Material: NBR,silicon rubber fluorin rubber,PTFE Product DescriptionRUBBER SEALMaterial: NBR, silicon rubber, fluorin rubber, PTFE. Working temperature: -35-+250º C Working pressure: ≤ 32Mpa Working medium: Hydraulic pressure oil, lube, air, water.