BBT shank Taper Arbor

1, -185 treatment ultra-ndende ndende ikonje ikonje, kuburyo hafi ya bose bitabiriye guhinduka austenite kuri martensite;
2 、 Imvura ya karbide ya nanoscale, byongera ubukana nubukomere;
3 、 Kugabanya uruhare rwimyitwarire, kwambara birwanya iterambere;