Anopisa akakungurutswa kabhoni simbi simbi mabhawa, akadai 15#, 20#, 35#, 45#, 50#, 55#, uye 60#, anoshandiswa zvakanyanya mumaindasitiri akasiyana siyana nekuda kweakanakisa makinika zvivakwa uye kuita zvakasiyana. Nhamba idzi dzinowanzo miririra kabhoni yemukati kana zvimwe zvimiro zvesimbi, uye dzinowanzobatanidzwa neChinese simbi mamakisi.
Aya anopisa akakungurutswa kabhoni simbi simbi mabara anozivikanwa nekusimba kwazvo, yakanaka machinability, uye weldability, ichiita kuti ive yakakodzera maapplication akaita semashafts, axles, magiya, uye zvimwe zvinhu zvemuchina. Iwo anowanzo shandiswa mukuvaka zvikamu zvemotokari, zvekurima zvekurima, uye general engineering zvikamu.