Peb cov khoom lag luam feem ntau lees paub thiab ntseeg tau los ntawm cov neeg siv khoom thiab tuaj yeem ua tau raws li kev xav tau ntawm kev lag luam thiab kev sib raug zoo rau Dumbwaiter of Elevator,Tsheb Hydraulic Lift, Lub Tsev of Elevator, iav of elevator Rau Tsev,Electric Tsev of Elevator.Peb zoo siab txais tos cov neeg siv khoom txawv teb chaws los sab laj rau koj txoj kev koom tes mus ntev nrog rau kev sib koom ua ke.Peb xav tias peb yuav ua tau zoo dua thiab zoo dua.Cov khoom yuav muab rau thoob plaws ntiaj teb, xws li Europe, Amelikas, Australia, New Zealand, Egypt, Amsterdam, Portugal.Ua kom cov khoom zoo los ntawm kev xaiv cov neeg muab khoom zoo tshaj plaws, peb kuj tau siv cov txheej txheem tswj kom zoo thoob plaws hauv peb cov txheej txheem.Lub caij no, peb nkag mus rau ntau lub chaw tsim khoom, ua ke nrog peb cov kev tswj hwm zoo, kuj ua kom peb tuaj yeem ua tiav koj cov kev xav tau ntawm tus nqi zoo tshaj plaws, tsis hais qhov kev txiav txim loj.
