... a large-size company specilizing in manufacturing the nylon POY, DTY , FDY. 1. Nylon . POY. 35D/12F, 39D/14F, ... 24F black, 128dtex/36f, 135dtex/36f,186dtex/48f. DTY. 28D/10F 30D/12F, 40D/12F,50D/18F,78dtex ... 115dtex/36f,150D/96f,155dtex/48f, 234dtex/72f,DTY color yarn, DTY 70/24/1, optical white, deep blue, ... brown, grey...... FDY. 12D/5F,40D/12F,70D/24F,100D ...