Nitrile rubber extrusion is mainly used for the production of oil products, such as oil pipe, tape, rubber diaphragm and large oil bag, commonly used in the production of various types of oil-molded products, such as O-rings, oil seals, cups, diaphragm valves, bellows , but also for the production of rubber sheet and wear parts. NBR parts can be widely used in in the automotive, aerospace, petroleum, photocopying industries .