Isihlalo somdlalo siwukuchithwa komqondo wendabuko wokuhlalisa, ukwephula inqubo yokukhiqiza izihlalo ezijwayelekile, shintsha izinto zezihlalo ezijwayelekile zokwenza imikhiqizo emisha yenkathi.Izihlalo zemidlalo zilandela umqondo ohlukile wokuklama owenziwe umuntu, o-ergonomic, ongagugi, ukumelana nokuklwebheka, nolaka...
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