polyester covered spandex yarn spandex covered yarn raw white S&Z air covered yarn good quality and competitive prices Hangzhou ... , 30d, 40d, 50d, 70d, 100d, 140d, 200d etc., is raw white and black, dyed or dope dyed, and flat or textured ... includes 50d, 75d, 100d, 150d, 200d, 300d etc., is raw white and black, dyed or dope dyed, and flat or textured ...