Thaum lub sijhawm 27th-29th Lub Yim Hli 2019, peb zoo siab tau ntsib ntau tus neeg siv khoom hauv 1st of elevator & escalator expo hauv South Africa. Cov neeg los ntawm thoob plaws lub ntiaj teb tuaj xyuas peb lub chaw muag khoom, thiab peb tau qhia cov ntaub ntawv ntau ntxiv rau lawv rau peb cov khoom. Nws kuj yog peb lub meej mom kom paub tias, lawv tau ntseeg los ntawm peb cov khoom, thiab peb yuav txhim kho peb tus kheej kom muab lawv lub neej zoo dua!