I-uprights yenziwe ngamatyhubhu angama-square angama-3mm, ngelixa ezinye iibhubhu zisebenzisa ubukhulu be-2.5mm, ziqinisekisa ukuzinza kunye nokuthembeka ngexesha lokusetyenziswa.
Inkqubo ye-WALL-BASED yenzelwe ukulungiswa kwiindonga zombini kunye nomgangatho, inikezela ngezikhululo ezahlukeneyo zokuqeqesha ezisebenzayo phezulu kwiishelufu zokugcina amanqanaba amaninzi, ukwandisa ukusetyenziswa kwendawo.