Ukuthengiswa kwama-grates ensimbi amabhuloho ezinyawo ahlukahlukene kanye noshintsho kanye nezitebhisi zobukhulu obuhlukahlukene. Ukulethwa kobukhulu nokwenziwe ngokwezidingo ngokuya ngezidingo zekhasimende. Iseluleko ekukhetheni uhlobo olulungile lwe-grate ngokusho kwenhloso yokusetshenziswa.