Zosalukidwa zosaluka zokhala ndi ma laminated kuti azipaka ma flex duct
Chifukwa cha kupepuka, kulimba kwamphamvu, kuchepa pang'ono / kutalika, kuteteza dzimbiri, ma crims okhazikika amapereka phindu lalikulu poyerekeza ndi malingaliro wamba. Ndipo ndiyosavuta kuyimitsa ndi mitundu yambiri yazinthu, izi zimapangitsa kuti ikhale ndi magawo ambiri ogwiritsira ntchito.