Cov saw hlau crawler yog tsim los ntawm kev siv cov txheej txheem casting thiab machining, kom ntseeg tau tias qhov tseeb ntawm qhov ntev. Muaj kev koom tes zoo meej hauv txhua ntu. Yuav kom lav tau tias qhov ceev ntawm kev taug kev thiab kev ua haujlwm tig ntawm lub excavator ua tau raws li cov qauv zoo tshaj plaws, nws yog ib qho tseem ceeb kom ua raws li cov txheej txheem hauv qab no. Nws lub teeb yuag tab sis muaj zog, tsim qauv yooj yim thiab tus nqi sib tw muab cov txiaj ntsig ntxiv rau cov neeg siv khoom.
