Utyelelo lweFektri
Njengomvelisi eTshayina, singabonelela ngokukhawuleza nangokuchanekileyo ngeenkonzo zothutho kunye nenkxaso ukusuka ekukhethweni kwemveliso ukuya ekuhanjisweni kwemveliso. Ishishini eliphambili: Ukuthumela ngaphandle ii-castors, amavili e-universal kunye nezixhobo zoshishino, kunye nokubonelela ngee-castors kunye namavili angatshatanga ahambelana nemigangatho ye-ISO, ANSI EN kunye ne-DIN kumaqabane eshishini.
