... NBR,NR,SBR,NR,etc 3.Welcome OEM order Rubber Parts Material : EPDM,CR,NBR,NR,SBR,NR ... and shape can be changed upon request. Available in various sizes and colors.5) Available indifferent kinds of ... by ourself. Ring Gasket We can offer various rubber parts, like rubber bonded to metal parts, swimming fins, heart ... mobile phone, MP3/MP4, silicone earplug, etc. Rubber performance: Custom rubber parts