Vatengi vedu vezvidhina vari mumatunhu makumi matatu nemana, nesarudzo yevatengi ye34 +. Kugamuchirwa kuti utishevedze kubvunza. Isu tinopa zvidhinha kurongedza vhidhiyo uye pane-saiti nhungamiro. Brick strapping turu, tsvuku yezvidhinha tambo turu, hollow zvidhinha tambo turu, porous zvidhinha tambo turu, yakajairwa zvidhinha tambo turu uye zvichingodaro.