Piv nrog gantry crane, semi-gantry crane tsuas muaj ib sab ob txhais ceg, yog li tus nqi ntawm semi gantry crane yog pheej yig dua li ntawm gantry crane.Tsis tas li ntawd, semi gantry crane pab cov neeg siv khoom txuag chaw thiab ua kom tsim nyog siv lub Hoobkas steel qauv uas twb muaj lawm.
Lub sij hawm xa tuaj: Mar-31-2022