... materials are available. 3high quality,best price Product InformationNameRubber plug,Mechanical plug,Rubber molded partsMaterialEPDM,NBR,SBR,CR,NR,SIL,VT, ... requestSurfacecoating with Teflon, Talc ,Graphite.etcCertificateISO9000 and NSFRubber compoundCan be UL, FDA, ROSH, REACH approvedMode of productionCompression or injection or ... service .As a manufacturer ,our price are competitive. Rubber plug