... materials are available. 3high quality,best price Product InformationNameRubber plug,Mechanical plug,Rubber molded partsMaterialEPDM,NBR,SBR,CR,NR,SIL,VT,HNBR ... are welcomed .Also we welcome trial order before mass production. 7.If you are interested in our products, please feel free ... best service .As a manufacturer ,our price are competitive. Rubber plug