... ok 3.competitive price Mechanical parts nitrile Oil Seal Standard Material Properties ASTM/DIN ISONBRACMVMQFKM(NEM)HNBR(NEM)PIFEFKMWear Resistancevery goodmoderatemoderatevery good ... ,motocycles,trucks,buses,agricultural,machinery and any equipments.Details: 1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose ...