... OEM service is available. seal ring1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU,PTFE etc ... . Our main products contains o-rings,rubber seals,rubber gaskets,rubber grommets,rubber washers ,rubber dampers,rubber bellows,rubber hangers,rubber bushes,rubber plugs,rubber bracelets etc. Special care has ...