... 1. make nylon 6 FDY, Catonic FDY, polyester FDY 20D--600D SD, TBR,black color 2. 30/24, 40/12, ... colours yarn and different kind fancy yarn from 20D to 600D with 100,000 tons every year are available.The ... black yarn is FDY and DTY yarn from 50D to 600D.The fire retardant yarn, bamboo charcoal, Doris yarn, hygroscopic & ... nylon 6 FDY, Cationic FDY, polyester FDY yarn, 20D--600D, SD,TBR,black color yarn