... Product Description PEI part(PEI bushing,PEI bearing,PEI bellow,etc.) are the best chemical ... self-lubricating and electrical flame retardant, commonly used in the food machinery, textile machinery, engineering machinery, and so on.PEI bushing,PEI bearing ... oil seals, hydraulic seals, thermoplastic forming self-lubricating shaft, tape, ceramic industrial seals, Bearing cap, plastic gears, PU products, ...