BBT shank Taper Arbor

1, -185 ℃ kopitilira muyeso-atali kwambiri kuzirala mankhwala, kuti pafupifupi onse kutenga nawo mbali austenite kusintha kwa martensite;
2, The mpweya wa nanoscale carbide particles, kuwonjezera kuuma ndi kulimba;
3, Chepetsani nawo nkhawa, kuvala kukana bwino bwino;