Polyurethane (PU), ine zita rakazara polyurethane, inhengo yepolymer.Yakagadzirwa naOtto Bayer nevamwe muna 1937. Polyurethane ine mapoka maviri: polyester type uye polyether type.Anogona kugadzirwa kuita polyurethane mapurasitiki (kunyanya furo), polyurethane fibers ...
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