TOP GUIDELINES OF SPANDEX YARN PRICE PER KG

Chemical path to polyurethane polymer used in manufacture of spandex. Spandex is especially composed of a polyurea derived through the reaction of the diol and a diisocyanate. Two classes of spandex are described by the "macrodiols". A single course of macrodiols may be the oligomer generated from tetrahydrofuran (i.The Fantastic elasticity of span