Dollies tau pab cov lag luam txav cov khoom loj, hnyav los ntawm point A mus rau point B tau ntau xyoo lawm.Yog tsis muaj kev pab los ntawm dolly system, ntau ntawm cov khoom no yuav tsis txav mus los.Ua tsaug rau dollies, tseem hu ua industrial rigging skates lossis tshuab skates, cov neeg ua haujlwm tuaj yeem thauj khoom xws li kev tsim kho ...
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