Nkọwa ngwaahịa
Agbụ ụgbọ ala anyị bụ ihe ndị a:
1. Short pitch precision Leaf chains(A usoro) na mgbakwunye
2. Short pitch nkenke akwụkwọ agbụ (B usoro) yana mgbakwunye
3. Ugboro abụọ nke nnyefe nnyefe na mgbakwunye
4. Agbụ ọrụ ugbo
5. Agbụ ọgba tum tum, sproket
6. Njikọ njikọ