nqa nqa crane, ob chav beam gantry crane 30 tuj
Ob chav beam gantry crane nrog hooks yog siv sab nraud warehouse lossis rail sideways los ua kev tshem tawm thiab tshem tawm haujlwm. Hom crane no yog tsim ntawm choj, txhawb cov ceg, crane mus tsham khoom, trolley nrog muaj zog lifting winch, cov cuab yeej hluav taws xob thiab tswj lub cev. Raws li nws cov qauv tsim khoom hnyav, nws muaj peev xwm siv dav hauv txhua hom kev lag luam.
