🀅 Material: Nitrile Rubber（NBR ）. NBR Black Nitrile. The manufacturer of this item has not yet been identified. 🀅【Wide Application】- These Small Rubber O Rings Are Widely Used for Automotive, Pressure Washer, Filter, Pump, Water Hose, Plumbing Pipe, Engines, Valves, Air Conditioning Maintenance and Much More.
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