Raws li cov duab ntawm nws cov hniav, cov trowel tuaj yeem faib ua peb pawg ua si: cov hniav looj caj dab thiab cov hniav tawv nqaij, yog li cas ntawm cov hniav ntawm cov hniav?
(1) cov tawv nqaij ntse
Nws yog tus cwj pwm los ntawm cov qauv serrated nyob sab laug, sab xis, lossis ib puag ncig cov nplais ntawm cov vuas hauv av, txoj kev taug ko taw sab hauv tsev, thiab lub qhov muag dig muag.
(2) square-tu hniav trowel
Nws yog tus cwj pwm los ntawm cov duab xwm fab ntawm ntug ntawm cov hniav mosaic, thiab cov txiv ntoo square zoo nkauj, uas yooj yim rau paving mosaic vuas .
(3) cov trowel nkhaus
Nws yog tus cwj pwm los ntawm ib lub square ntug duab thiab zuaj ib puag ncig ntawm ntug kev muaj lub luag haujlwm xws li pom cov phab ntsa thiab cov vuas uas pom zoo rau phab ntsa .
