Dab tsi yog qhov txawv ntawm phau ntawv thiab hluav taws xob hoist?

Keeb kwm, lub hauv paus ntsiab lus ntawm kev sib tsoo ntawm lub tshuab hluav taws xob hoist yog lub zog hluav taws xob, uas muaj lub zog pib nrawm, thiab qhov siab thiab cov khoom hnyav uas tuaj yeem nqa tau loj. Yog li ntawd, nws muaj ntau yam kev siv hauv tsev, factories thiab lwm qhov chaw. Cov saw hoist yog qhov tseem ceeb heev vim nws txoj cai braking, thiab nws tseem yog neeg ua haujlwm. Thaum nws ua haujlwm, nws siv zog ntau heev, thiab nws yuav tsis muaj qhov zoo hoisting.

Phau ntawv hoists feem ntau yooj yim txav mus los ntawm hluav taws xob, tab sis ua haujlwm ntau dua los nqa cov khoom hnyav dua. Fais hoists feem ntau yog muag hauv ib leeg, dual thiab peb theem fais fab, uas yuav tsum phim lub zog muab ntawm koj cov nroj tsuag.