Oil resistant o-rings 1,Material: Rubber and silicone. 2,Color: Black,green etc. 3,Size: According to customers' demand. Oil resistant o-rings ... Details:1. Material: Silicone, rubber, FKM, NBR, and NBR + PVC 2. Hardness ... Celsius 4. Performance: With good sealing, water resistance, oil resistance, anti-aging, insulation, nontoxic, tasteless, etc 5 ...