... /polyester blended high tenacity canbe offered to replace 100% nylon PA6 FDY,High Tenacity,TBR1. Material: 100% nylon2. Its highest tenacity ... as nylon thread.4. Specification: 25D--300D5. We also offer PA6&PA66 High Tenacity, SD yarn for military usage. Maximum Tenacity ... : 9.0g/d6. Neutral even packing. AA grade PA6 FDY,High Tenacity, TBR