... , more accurate size, more smooth running;4\heat-treated by mesh belt furnace or high frequency quenching, twice abrasive resistance as ... 1045),16Mn Heat treatmentHigh frequency quenching,heat-treated by mesh belt furnace and carburizingSurface finishingPlate zinc, nickel plate, chromeplate,Sandblasting, Dull polish ... ,RS100,XRM,DT125,TS125,GP125,XLR,BZLP,HONDA155 Motorcycle sprockets and chains set