Jiangsu Kai Yuan Chemical Fiber Co., LTD(Wuxi Kai Yuan Fiber Trading Co., Ltd). is an important production base of elastic fiber with PBT as the center. The company has more than 60 sets of single-stock and dual-stock equipment with online tension bama and the new generation hongyuan 1200. The main products include pbt20-300d series, cationic 30-150d series, extinction series, flame retardant series, high-shrinkage 30/12, 60/24, 75/24, 90/24 and 90/24 products with different shrinkage rates of various specifications, PBT/PET, PBT/PA composite series, and the production of non-ferrous products centering on PBT.