Ib tug engineer tuaj yeem ua haujlwm tau ob lub Fulzh vuam neeg hlau.
Cov neeg hlau tuaj yeem ua haujlwm nrog cov neeg ua haujlwm. qhov vuam ceev thiab zoo yog qhov zoo dua.
Qhov system no muaj ntau qhov zoo:
txhim kho qhov vuam zoo.
yooj yim tswj welding txheej txheem.
nce vuam ceev.
txo kev siv zog ua haujlwm.
txo cov kev xav tau rau cov neeg ua haujlwm kev txawj ua haujlwm.
txo cov peev hauv cov khoom siv.
txhim kho qhov chaw ua haujlwm.
video yog daim ntawv thov no. tom qab siv peb cov neeg hlau vuam, lub Hoobkas txhim kho lawv lub zog kev lag luam.