Qinhuangdao Hongtong Machinery Co. Ltd (Formerly: Qinhuangdao Hongdetianding Foundry & Casting Machinery Co., Ltd) Head Office is located in Qinhuangdao- beautiful scene & open coastal city. It?s in a developed economy in the Bohai Rim Economic Circle, north of Shenyang, Dalian, Beijing-Tianjin-Tangshan according to the South, east balcony Jiaozhou Bay. The company has abundant technical force and Sensor Technical Engineer who has many years engaged in the aluminum alloy casting equipment ...