Tsis ntev los no, aluminium gantry crane tsim los ntawm peb lub tuam txhab xa tawm mus rau cov neeg siv khoom hauv Singapore.Lub crane muaj peev xwm nqa tau ntawm ob tons thiab tau ua los ntawm txhuas, ua rau nws lub teeb yuag thiab yooj yim txav mus los.Aluminium gantry crane yog lub teeb yuag thiab hloov tau yooj yim nqa khoom, ...
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