... service is available. seal ring1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU,PTFE etc.2 ... management and rich technical capabilities. Our main products contains o-rings,rubber seals,rubber gaskets,rubber grommets,rubber washers ,rubber dampers,rubber ... us is used in conglomerate applications. Manufacture and supply colorful Silicone Rubber Waterproof O shape ring