Mugihe cyo guhitamo hagati yuruhu rwa PU nimpu nyayo, icyemezo ntabwo buri gihe gisobanutse neza. Ibikoresho byombi bitanga inyungu zitandukanye, ariko kandi bizana ibibazo byabo bwite. Mu myaka yashize, uruhu rwa PU, ruzwi kandi ku ruhu rwa polyurethane, rumaze kumenyekana cyane, es ...
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