... machines, able to produce various specifications of covered yarn 20000Mt/ Year, and serving warp knitting, circular knitting ... yarn and polyester covered spandex yarnThe spandex we use includes 20d, 30d, 40d, 70d, 140d etc.The nylon ... ., is raw white and black, dyed or dope dyed, and flat or textured.Hangzhou Huachuang Co Ltd is an ... circular knitting machines and so on. nylon covered spandex yarn