TOP GUIDELINES OF SPANDEX YARN PRICE PER KG

The critical attribute of these molecules is that they're very long and versatile. This Section of the spandex fiber is answerable for its stretching characteristic. One other pre-polymer applied to supply spandex is really a polymeric di-isocyanate. It is a shorter chain polymer, that has an isocyanate (-NCO) team on both equally finishes. The pri