Natural rubber o ring 1.Material NR 2.Good tensility,wearing 3.ROHS,ISO9001,14001 4.Type:O ring,X ring, ... V ring,U ring,etc Production Description Rubber o ring ... main products contains o rings, rubber seals, rubber gaskets, rubber grommets,rubber washers, rubber bumpers, seal components, rubber suction cup, damping pads, insulating pieces, dust-proof ...