... . 2,OEM service. 3,Ozone resistance,aging resistance,UV resistance. Rubber Hose1, Material:NBR,HNBR,ACM,CR,SBR, EPDM,IIR,NR ... :Between 30~90 shore A3, Property:high/low temperature resistance,oil and fuel resistance,weathering resistance,Ozone resistance etc.4, Certification:ISO9001 ...