Wester introduced advanced facilities and production technology from Japan, and specializes in manufacturing polyester high tenacity(HT) filaments which range from 33dtex to 555dtex. Its annual output is over 20,000 tons. There are 5 types: HT low elongation low shrinkage filament, HT low shrinkage filament, HT low shrinkage abrasion-resistant filament, HT trilobal filament and HT fire-retardant filament.