Nkọwa dị mkpirikpi:

Ihe mkpuchi maka ndị na-eme mgbanwe mmanụ:
1) Laminated osisi, mkpanaka na machining akụkụ
2) Transformer osisi na ihe mkpuchi ihe
3) kaadiboodu corrugated, clack bands ma ọ bụ ọwa mmanụ jụrụ oyi
4) Electrician na-acha ọcha akwa eriri, E-glass eriri, nkwekọrịta gbalaga
5) Akwụkwọ diamond nwere ntụpọ, akwụkwọ ndị etinyere n'afọ, akwụkwọ USB
6) Phenolic akwụkwọ tubes, akwụkwọ tube na crepe akwụkwọ tube
7) Amorphous ọkpụkpụ phenolic mkpanaka & aku