A) Core Spinning: The spandex fiber is blended with other fibers, such as nylon or polyester, and fed into a equipment referred to as a Main spinning machine. This machine spins the Main yarn by wrapping the spandex fiber across the central Main, guaranteeing a uniform and constant coverage. Spandex https://double-covered-yarn28158.blogofoto.com/63877030/5-tips-about-double-covered-yarn-you-can-use-today