Iimpawu zemveliso:
1. Isikhuselo esifihliweyo kumphezulu, elula kwaye ilula kwaye ilula.
2. Uhlobo lohlobo lwegiya, i-swink inyibilikisi, i-sparication yobushushu.
I-3. Imingxunya emibini ye-vent yokuhlaselwa kobushushu, inkonzo yenkonzo eyandisiweyo.
4. Ukuba nendawo enkulu ngokwaneleyo kwibhokisi yomqhubi kuwo onke amacandelo, imingxunya yokuzikhethela ye-screw yohlobo oluhlukileyo lwabaqhubi.
Umzobo kunye neNcinci
