英文别名:Polyisocyanurate resins;Polyurethanes, cellular;PU foam;The following companies react isocyanates or prepolymers with polyols to produce polyurethane foams. The list is incomplete.;POLYURETHANEOLIGOMERS;POLYURETHANEVARNISH;POLYURETHANELACQUER;Polyurethane foam: (Urethane polymers)