... resistance OEM,ODM available ISO9001,SGS,ROHS Lead time:30 Day rubber seal ring 1)Applicable material:Silicone,NR,NBR,SBR,EPDM ... ,PVC,PPTV,HIPS,ABS,EPE,EVA etc.,with hardness between 30-90 shore A.2)performance:Good resistance to agingHigh wearabilityHigh ... have a full machine shop that can help you modify your enigine for race tolerances and performance. o ring manufacturer in China ...