Iimvavanyo zetheyibhile zigxininisa ukhuseleko (i-edges, entrapment), ukuzinza (i-toppling), amandla (imithwalo) kunye nokuqina (ukusebenza) kweemveliso. Sivunyiwe ukuba siphumelele i-EN12520: Iitafile, kubandakanya indawo yokutyela, ikofu, ngamaxesha athile, kunye neetafile zeBar Imiphezulu yeetafile zeglasi ziphantsi kovavanyo olongezelelweyo, njengoko zenza ukongeza...
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