... 4.ISO 9001,2008,tuv nord 5.SGS ROHS RFOS. Oil seals-Durable,ozone-resistantISO9001: 2000 standardOEM/ODM are welcomedGood quality ... and best prices1.Material: NBR,HNBR,PTEE,FPM,MVQ,EPDM,PTFE,and so on2.Application: trains,automobile, ... friendly business relationship.Export products are include rubber widescreen,elbow,oil seal,o-ring andso on.7.According to customers' drawing, ...