Lianyungang zhongtong composite material machinery manufacturing factory, Lianyungang Sky Trailblazer Aviation Equipment Co., LTD, Lianyungang Jinping machinery manufacturing co., LTD., all belong to Lianyungang zhongtong group, each company covers an area of 30000 square meters, was founded in the 1950s, is the original chemical industry enterprises, is a five-year plan during one of 156 large engineering construction projects, earlier domestic production manufacturing enterprise for high precision, high performance, multi-function computer control multi-axis linkage winding equipment. The equipment of Zhongtong has passed the evaluation by the expert group of military-civilian integration development of the Federation of Industry and Commerce composed of military equipment procurement management experts, and has been selected into the Recommended Catalogue of Dual-use High-tech Private Enterprises and Products, Volume 7. Zhongtong is a comprehensive enterprise integrating scientific research, design, development and manufacturing, and is a high-quality enterprise in the field of composite material winding equipment processing in China.