Rubber Silicone Sleeve 1,FDA,ROHS Certificated. 2,OEM service 3,Ozone resistance,aging resistance,UV resistance. Rubber Silicone Sleeve1, Material:NBR,CR, ... SBR,EPDM,IIR,HNBR,ACM,NR,EP,Silicone,Viton etc.2, ... resistance,Ozone resistance etc.4, Certification:ISO9001:2008,ROHS, FDA.5, Packing: plastic bag&carton box or according ...