... composition of rubber stoppers 1.Rubber Stopper Set 2.Easy for use and varid 3.Good quality 4.OEM Colorful food grade composition of rubber ... stoppers Feature:1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU,PTFE etc.2 ... Profile: Our company was established in 2003, providing rubber products including automobile parts, plumbing fittings, household electric ...