... GB/T28001certifications 3.Factory supply directly Slewing bearing for concrete machinery:Slewing bearing for 72m pump 1) High reliability2) The inner ... no obvious temper brittleness. 5 Applications It Is widely used for the locomotive traction gear, gear, rear axle, turbocharger, cylinder ... of alloy and specials steels including cold work tool steel, hot work tool steel, high speed tool steel and ...