Guangdong Hengtong Optic-electric Technology Co.Ltd., wholly-owned subsidiary of the Jiangsu Hengtong Group, which is established in 2011. With the advanced high technology , experience on the optical cable industry ,and the leading R&D ability , we produce the most excellent products With the scientific management , we raise the quality of the products ,we put the best products to the customers. We need the on and on effort , We have designed t