1) Mea maka
2) Hoʻohalahala
3) Pre-heating normalizing
4) Huli ʻino
5) Hoʻopau i ka huli ʻana
6) Hobbing i nā niho
7) Heat mālama carburizing 57-62HRC
8) Pahū pana
9) OD a me Bore wili
10) Helical gear wili
11) Hoʻomaʻemaʻe
12) Hoailona
13) Puke a me ka hale waihona
ʻO nāʻoihana heʻumi kiʻekiʻe ma Kina, i hoʻolakoʻia me nā limahana 1200, ua loaʻa iā 31 mau mea hana a me 9 mau patent. a ma waho aʻe o ka makemake o ka mea kūʻai aku.