Rubber Seals Gasket&Ring 1,FDA,ROHS Certificated. 2,OEM service 3,Ozone resistance,aging resistance,weather resistance Silicone Rubber Seals Gasket&Ring1, Material:NBR,CR,SBR,HNBR,ACM,EPDM,IIR,NR, EP,SIL,FKM etc.2, Hardness:Between 30~90 shore A3, Property:high/low temperature resistance, oil and fuel resistance, water resistance,weathering resistance, Ozone resistance etc.4, Certification: ...