Detailed Product Description PEI part(PEI bushing,PEI bearing,PEI bellow,etc.) are the best chemical resistance properties and long- ... machinery, engineering machinery, and so on.PEI bushing,PEI bearing,PEIbar, PEI bellow,PEI tubing, PEI sheet. PEI ball valve, PEI bushings, PEIseal ring. Nylon workpiece PA ...