... ,Rubber O-Ring,Rubber Ring Seal and Rubber Gasket like: NBR, HNBR, CR, PDFE, EPDM, SILICONE, VITON, etc. Can choose on ... years` experience in rubber parts producing and mold developmentMaterialSilicone, NR, SBR, NBR., EPDM, CSM, CR, HNBR, VITON, AFLAS etc.(Make comparison and ...