1.bearing bushing/engine bearing bushing 2.High Density,Zero Defects,Easy Cutting 3.OD: ... drillingdrillable packers/drillable bridge plug, suction vitta Railway vehicle bogie bush, braking system bushing Metallurgical equipmentcasting lift tube ,suction tube, thermocouple ... , steering pump stator, gear Mine mechinanismwear resist sleeve, engine cylinder bearing bushing