6 ft liab doog perforated steel coj mus muag sab nraum zoov cov rooj noj mov, nrog cov qauv tsim, zoo nkauj thiab muaj kuab heev, peb siv cov tshuaj tsuag sab nraum zoov, dej tsis qab, xeb thiab corrosion kuj, du nto, zoo nkauj xim, xim tuaj yeem kho raws li koj xav tau, cov ces kaum ntawm kev kho arc, kom tsis txhob raug khawb, lub rooj noj mov no yog qhov tsim nyog rau kev sib tham sab nraum zoov nrog tsev neeg thiab cov phooj ywg, Nws kuj siv tau rau txoj kev, squares, chaw ua si, vaj, patio, tsev kawm ntawv, khw malls thiab lwm qhov chaw pej xeem.