Lub tshuab zx50c no yog cov khoom muag kub,,, Nws yog ib hom kev lag luam-hom drilling thiab milling tshuab, lub teeb thiab hloov tau yooj yim, yog siv rau kev kho tshuab, tsis yog cov khoom ua haujlwm thiab cov khoom tsim.