NBR or Acrylonitrile Butadiene Rubber, Nitrile Rubber, Buna N Rubber are synthetic rubber derived from Acrylonitrile Monomer and Butadiene Monomer. This type of rubber structure has the function group-CN Is an element Making this type of rubber have outstanding properties, oil resistance Whether it is petroleum, vegetable oil, animal oil, Mineral Oil, Non aromatic petroleum and is resistant to various non-polar solutions.