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Kufotokozera
Ndi kamangidwe kapadera ka malaya-hanger tchanelo, difayi imachepetsa kutulutsa kwa zinthu zomwe zimagwirizana ndi kutentha. Ndi chosinthika chapamwamba kufa milomo, chosinthika m'munsi kufa milomo ndi perpendicular kutsekereza kapamwamba, kufa kumakwaniritsa makulidwe a zinthu zosiyanasiyana. Chovalacho ndi choyenera kwa bolodi la PVC lotulutsa thovu ndi makulidwe apakati pa 2-20mm.
