crank shaft oil seal: 1) Material: NBR,EPDM,SBR,CR,,FKM,etc. ... kinds of oil seal 3) OEM welcome 4) Manufactory crank shaft oil seal:product all kinds of oil seal: 1. Applications ... .6. Specialized in designing and manufacturing all of oil (water) seals, gaskets, o rings, bolts.7. OEM and ODM orders are ...