... +spandex, polyester + spandex we are a large-size company specilizing in manufacturing the nylon yarn and covered yarn, we have produced ... .NYlon6 and nylon66 Air Covered YarnNYlon + Spandex: 20/15 20/20, 20/30 20/40, 40/40, 70/70, 140/140, 20/70,40/70Draw Rate : 1.9 , 2.2 ... : 40d/34f , 70d/48f , 70d/68f, RWDTY Dope dyed yarn: 40/12 black, 70/24 black, 100/36 blackDTY intermingled yarn ...