1. Ibhokisi langaphandle elithule lifakwe ibhodi lokuvimbela umsindo elivimbela ukuguga elisebenza kahle kakhulu kanye nezinto zokunciphisa umsindo. Ibhokisi langaphandle lenziwe laba ngumuntu, lineminyango ezinhlangothini zombili kanye nezibani zokulungisa ezakhelwe ngaphakathi, ezilungele ukulawula nokulungisa.
2. Amasethi ejenereyitha kadizili afakwe esitsheni angathuthelwa endaweni edingekayo kalula futhi angasebenza ngaphansi kwezimo eziqinile. Ngokushintsha kokuphakama nokushisa, ijenereyitha ingathinteka kakhulu, futhi ijenereyitha kadizili yesitsha ifakwa nohlelo lokupholisa olusezingeni eliphezulu, futhi ijenereyitha ingasebenza nokuphakama nokushisa okucacisiwe.
| Ubude | Ububanzi | Ukuphakama |
| 4000 | 2000 | 2200 |
| 6000 | 2440 | 2590 |
| 9000 | 3000 | 2900 |
| 12000 | 3000 | 2900 |