1.I-Frequency quenching kanye ne- tempering sprocket surface, ukuze ubulukhuni bungaba HRC48-52.
I-2.Supply evela esitokisini sethu noma eyenziwe ukuze i-oda ngokusho komdwebo wekhasimende.
I-3.Ukumelana nokugqoka okuhle kakhulu ukuthuthukisa impilo ye-sprocket.