PE rufi bututu kuma ana kiransa bututun kariya na waje, bututun jaket, bututun hannun riga.The kai tsaye binne polyurethane rufi bututu da aka yi da HDPE rufi bututu a matsayin m Layer na waje, tsakiyar cika polyurethane m kumfa da ake amfani a matsayin rufi abu Layer, kuma ciki Layer ne karfe bututu.Polyure-thane kai tsaye binne rufi bututu yana da kyau inji Properties da thermal rufi yi.A karkashin yanayi na al'ada, yana iya jure yanayin zafi mai zafi na 120-180 ° C, kuma ya dace da ayyuka daban-daban na sanyi da ruwan zafi mai tsayi da ƙarancin zafin jiki.