... Description The main product is hi-performance bare spandex yarn, 15D,20D,30D,40D,70D,105D,140D,210D ... 840D,etc. We can produce white and black spandex.Usage: Covering core, air interlacing yarn, circularly knitting, warp knitting, weft knitting, ... stockings, covering with cotton, medical bandage, baby and adult ...