... and PTFE antiwear surface. It is wildly used in hydraulic gear pumps, oil cylinder, oil Damping bushes and piston rings for ... machinery, corrosion resistant place of ocean industry.SF-1T HYDRAULIC PRESSURE PUMP SELF-LUBRICATING BUSHINGIt consists of a specially designed ... It's used in medium, high-pressure gear pump, ram pump, vane pumps etc.SF-1P SHOCK ABSORBER SELF-LUBRICATING BUSHINGIt developed ...