THE SINGLE BEST STRATEGY TO USE FOR SPANDEX YARN HS CODE

Chemical path to polyurethane polymer Employed in production of spandex. Spandex is principally made up of a polyurea derived in the reaction of the diol in addition to a diisocyanate. Two classes of spandex are outlined because of the "macrodiols". One course of macrodiols is the oligomer created from tetrahydrofuran (i.Durability: Spandex-coated