Roll pob ntsia hlau yog tseem muaj npe txias lub hau ntsia hlau , nws tsis yog sib tsoo pob ntsia hlau los yog hauv av pob ntsia hlau, tus qauv precision yog C7, cov khoom tseem ceeb yog cov kabmob steel Gcr15. Tam sim no peb lub hau ntsia hlau yog tib yam li tus qauv TBI.
Cov hlua khau npau npog yog siv rau hauv cov qauv tawm hauv kev tuav cov ntawv, kev siv hauv kev kho mob, thiab tseem nyob rau ntawm txoj kev pub nyob hauv chaw ua haujlwm woodworking.
Cov khoom no yog muaj raws li npaj txawb-ua pob ntsia hlau, nrog rau cov txiv ntseej mounted thiab bearing phau ntawv journal machined, los yog xa raws li ib tug unmounted ncej thiab txiv ntseej.
