Tim lyiv teb chaws overhead crane
Cov Nyiaj Nqi Them Nqi Them (tseem hu ua Cranes cranes) yog cov cranes nrog lub tshuab nqus tsev xws li hoist lossis qhib winch.
Lawv yog cov siv zog ua haujlwm nrog rau theem siab ntawm standardization, ua rau lawv zoo heev thiab hloov mus rau txhua yam xav tau, kev ntseeg siab thiab muaj ntau yam kev siv.
Tus qauv ntawm lub thawv nkag los lossis tus qauv profile, qhov ua kom zoo ntawm lub computer kev ua haujlwm. Peb cov qauv tsim qhov kev xaiv zoo tshaj plaws nrog rau cov khoom siv zoo tshaj plaws.
