100 Pcs,90 Hardness NBR O Ring, CS 1.78mm, Nitrile Rubber Sealing Ring, Round O Type Oil Resist Sealing Washer

: Nitrile butadiene rubberwith resistance to heat, oil, fuel and chemical; Strong sealing and good airtightness Easy to Use:You can use it in many places in your daily life and work. Feature:O-ring round in cross-section to provide a seal between cylindrical overlapping surfaces. They are commonly seen in engines, valves, Automotive, mechanical seals, pumps, constant pressure valves, instrumentation and so on Application:It is widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, agricultural machinery, and various instruments and meters. Welcome and I wish you a happy life, my friend.