elastic yarn single covered yarn raw white S&Z excellent quality elastic yarn: Hangzhou uniwell textile co., ltd. ... , 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 ...