1.get the best technology service 2.factory-- price is suitable for your markets 3.no influence to spinning process Changzhou Longma Polymer Technology Co., Ltd. is located in Changzhou City, which is in the center of Yangtze River Delta with beauty and richness.Changzhou is in the southside of Jiangsu Province, north to Changjiang, south to Taihu Lake, opposite to Shanghai and Nanjing ...