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FFKM
(FFKM/FFPM) rubber sealing rings can resist erosion by almost all chemical reagents. They feature excellent high‑temperature resistance, resistance to strong acids and alkalis, wear resistance, oil resistance, anti‑aging property, ozone resistance, vacuum resistance and favorable mechanical properties. They can operate continuously at high temperatures ranging from 230℃ to 320℃, with short‑term tolerance up to 350℃.