KHOOM
Peb cov khoom tseem ceeb muaj xws li: Dub Picket Fence, Crowd Control barriers, laj kab ib ntus, saw txuas laj kab, hauv zej zog enclosures, laj kab chaw ntau pob thiab ntau yam khoom siv hlau. Cov khoom no tau siv dav hauv kev tsim vaj tsev hauv nroog, kev tsheb ciav hlau, kev tsim kho qhov chaw, thaj chaw nyob, tsev kawm ntawv chaw ua si, vaj toj roob hauv pes, kev tiv thaiv dej thiab lwm yam.
