... Welding Material Co., Ltd, Chaohu Daqiao Nails Co., Ltd, Chaohu Yinqiao Welding Material Factory, Chaohu Jinlong metal manufacturing Co., Ltd, Hefei Yinqiao Welding Material Co., Ltd and etc ... one hand, highways run through cities of HeFei, Chaohu and Wuhu, connecting with the Yangtze Delta, on the other hand, Nanjing ...