my country is the world’s largest spandex producer and the industry continues to develop well.

polyurethane fiber, also known as spandex, is the most elastic synthetic fiber. it has a wide extension range, no wrinkles, high elastic recovery rate, wear resistance, soft and smooth feel, high comfort, and good dyeability. it has the advantages of sex, not easy to fade, acid and alkali resistance, wear resistance, anti-aging, small fineness, low…