Amfani da halaye na na'urorin hakowa dth.I. Amfanin dth rig.Ana iya amfani da na'urar hakowa ta dth wajen hakowa da hako ramukan igiyoyin igiya na dutse, ramukan anga, fashe ramuka da ramukan toshe ramuka a gine-ginen birane, titin jirgin kasa, babbar hanya, kogi, wutar lantarki da sauran ayyuka.II....
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