NBR metal foam rubber composite board is a new type of environmentally friendly sealing material made of highly cushioning foam nitrile rubber on a very thin metal substrate. It combines the characteristics of high elasticity and oil resistance of rubber with the rigidity of metal plates, and has excellent high compressibility, high resilience, and aging resistance. It has excellent oil and solvent resistance, small creep deformation, high shock absorption and sound attenuation, good sealing surface compactness, high temperature resistance, excellent sealing performance, and long service life.