... Product Description The main product is hi-performance bare spandex yarn, 15D,20D,30D,40D,70D,105D,140D,210D,280D,420D ... ,620D,720D,840D,1120D,1680D for diaper. Soft spandex RYT902C 120D,180D,260D,560D,720D,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 ...