Amino-resins, phenolic resins and polyurethanes, in primary forms

390910 Amino-resins; urea and thiourea resins, in primary forms 390920 Amino-resins; melamine resins, in primary forms 390931 Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI) 390939 Amino-resins; n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI) 390940 Phenolic resins; in primary forms 390950 Polyurethanes; in primary forms