... . make nylon 6 FDY, Catonic FDY, polyester FDY 20D--600D SD, TBR,black color 2. 30/24, 40/12, 40/34 ... HuJIAXING NEW AND HIGH TECHNOLOGY FIBER CO., LTD.ADD: NO. B-36 PACIFIC ASIA TECHNOLOGY INDUSTRIAL PARK JIAXING, ZHEJIANG, CHINA.Tel ... nylon 6 FDY, Cationic FDY, polyester FDY yarn, 20D--600D, SD,TBR,black color yarn