Rubber Hose 1,FDA,ROHS certificated. 2,OEM service. 3,Ozone resistance,aging resistance,UV resistance. Rubber Hose1, Material:NBR,HNBR,ACM, CR,SBR ... ~90 shore A3, Property high/low temperature resistance,oil and fuel resistance,weathering resistance,Ozone resistance etc.4, Certification:ISO9001:2008 ... your drawings or samples.8, OEM or ODM is welcomed. Rubber Hose