Amaslayidi angaphansi kwehhafu anwetshiwe abonakala ngokwakhiwa kwawo kwensimbi ephezulu yezinga eliphezulu, isisindo esihlaba umxhwele esingu-25KG, amandla okuvulwa okulungisekayo nawokuvala angama-25%, nokusebenza okubushelelezi, buthule. Lawa maslayidi anikezela ngesixazululo esithembekile nesiguquguqukayo sezinhlelo zokusebenza zamadrowa ahlukahlukene