... 4.Sample or drawing welcome NBR Rubber packing 1. Main materialNitrile rubber(NBR), also can use Natural rubber, SBR, IIR, PU, EPDM, ... widely used in automobile, electrical appliances, building vibration isolation and other industry. For example, air blower, water pump, ... instrument, measuring of ships and so on.7. Main performanceNBR provides an economic material having ...