... . 2,OEM service. 3,Ozone resistance,aging resistance,UV resistance. Silicone Cover1, Material:NBR,CR,SBR,EPDM,IIR,HNBR,ACM,NR ... ,EP,Silicone, Viton etc.2, Hardness: Between 30~90 shore A3, Property ... your drawings or samples.8, OEM or ODM is welcomed. Silicone Cover