BBT shank Taper Arbor

1, -185 ℃ ultra-ogologo miri jụrụ ọgwụgwọ, nke mere na ọ fọrọ nke nta niile nke na-ekere òkè austenite mgbanwe ka martensite;
2, The ọdịda nke nanoscale carbide ahụ, dịkwuo ike ike na ike;
3, Belata òkè nke nchegbu, eyi iguzogide budata mma;