... mine chute, concentration pool spindle collar and leaf, high pressure roller sleeve, turned the nozzle, and so on.Wear-resisting ... body, washer, packing, gear, bolts, nozzle, bushings, pay move machinery, metal net pad, pipes, flanges, stir the block of mechanical equipment, when ... the stern tube bearing. In the ceramic industry do ceramic roller head, with PTFE low price than about eighty percent, and ...