... advanced management and rich technical capabilities. Our main products contains o-rings,rubber seals,rubber gaskets,rubber grommets,rubber washers,rubber ... both in static seal and dynamic sealSizeMany types of O-Ring : O-type, E-type, U-type, V-type and so on, can make on your ... type.MatetialNBR, NR ,EPDM ,SBR ,SR ,CR ,IIR , Silicon, etc. ...