Good physical toughness Material:NR,SR,FKM,IIR,NBR,SBR,EPDM,CR,PU etc. Precision molds Excellent chemical and ... Impermeability Resistance, Oxygen Resistance, Flame Resistance,Heat resistance,Low and High temperature Resistance, Oil and Fuel Resistance, Animal and Vegetable Oil ... ,Oxygen Ated-Solvent Resistance, Water Resistance. Small quantity order accept o ring