Kupanga kwa polyurethane Padziko Lonse: Kusanthula Mwakuya Mawu Oyamba a Polyurethane Production Polyurethane ndi polima wosunthika komanso wogwiritsidwa ntchito kwambiri wotengedwa kuchokera kumankhwala apakati pa diisocyanates ndi ma polyols. Makhalidwe ake apadera, monga flexibili