Nws yog qhov hluav taws kub qhov rooj uas ua tau raws li qhov yuav tsum tau ua ntawm hluav taws kub tiv thaiv kev ruaj ntseg, kev ncaj ncees thiab thermal rwb thaiv tsev nyob rau hauv ib lub sij hawm. UL hluav taws qhov rooj hom muaj ib nplooj thiab ob nplooj ntawv. Lub qhov rooj cov ntaub ntawv yog galvanized steel phaj, stainless hlau phaj thiab zaj duab xis-coated steel phaj. Lub sijhawm hluav taws kub tuaj yeem ncav cuag 120 feeb. Txais tos kom sab laj peb.