... best price 2.Colour:white and black 3.The product is hi-performance bare spandex yarn 4.Good flexibility Detailed Product ... 720D,840D,etc. We can produce white and black spandex. UsageCovering core, air interlacing yarn, circularly knitting, warp knitting, weft knitting, ... Grading Workshop. 5.The different levels of spandex bare yarn can be divided into the different gradesby workers and packed ...