... demand. 4,OEM is welcome Heat resistance rubber o-rings Details:1. Material: Silicone, rubber, FKM, NBR, and NBR + PVC 2. ... 230 degree Celsius 4. Performance: With good sealing, water resistance, oil resistance, anti-aging, insulation, nontoxic, tasteless, etc 5. Specification ... drawings or samples. 6. Advantage: High with high technology and Competitive price with Best Service. 7. Packing: PP bay ...