ITEM NAME:270pcs High Pressure O-Ring Set HNBR Assortment Oil Proof Plumbing Air G JNW.Hydrogenated Nitrile Butadiene (HNBR), also known as Highly Saturated Nitrile (HSN) is a special class of nitrile rubber (NBR) and is for mission critical applications. Used for car, door, window, electric appliance, bearing, pump, carrier roller.
