... 1..ISO-001-2000 2.graphite bearing, carbon seal, graphite thrust bearing 3.mini: 50pcs 4.resined ... bearing, carbon seal, graphite thrust bearing 3.mini: 50pcs 4.resined impregnation, antimony,etcthrust bearing, graphite bearing,thrust bearing. ... manufacture them as per your requested. quality is best, wear durable, long life and high temperature. graphite thrust bearing/carbon mechnical bearing ...