valve oil seal -Material:NBR,Viton,EPDM,PTFE,PU,MVQ... -Good Quality and price -Certification: ... , trailers and exercise equipments.2. Customized specifications are welcome3. Materials: NBR, RP, FPM, MVQ, ACM, EPDM, PTFE, MFQ and so on ... , VITON, FFPM, PTFE, PU, PA etc.TemperatureCommon: -60~260degree centigrade;NBR(-40~120C),ACM(-20~150C),VITON(-20~200C), EPDM(-50 ...