Nkhani Za Kampani

Pokongoletsa mkati, miyala yamwala yachilengedwe idzagwiritsidwa ntchito kupanga mawonekedwe a concave ndi convex pakhoma. Chifukwa cha kutchuka kwa kalembedwe ka wabi-sabi, okonza amasangalala kwambiri ndi kugwiritsa ntchito zinthu zachilengedwe m'zaka zaposachedwa. Komabe, miyala yachilengedwe imakhala ndi zovuta zambiri monga zopangira, mtengo, mayendedwe, ndi zomangamanga zomwe zimakhala zovuta kuthetsa. Kutuluka kwa mwala wa PU kungagwiritsidwe ntchito m'malo mwa miyala yachilengedwe kuti akwaniritse zotsatira za "zabodza komanso zenizeni".