440C bheji resimbi risina simba
440C yakakwirira, chiremba chechromium martensitic chine chisimbi chine simba rakakwirira zvikuru uye chinopfeka kurwisana pashure pokudzima, kuzviita kuti zvive zvakakodzera nokuda kwokucheka midziyo, zvinhu, uye zvikamu zvakarurama.
ona zvimwe