China Black Steel Pipe For Water factory Our History Tianjin Xing Xin Tong Metal Technology Co., Ltd. is a brand of Xing Jian Holding Group. The group is headquartered in Beijing, the registered capital reaches to 15.6 million dollars, Tianjin Xing Xin Tong Metal Technology Co., Ltd. is professionally serves for fire fighting, gas, water supply, drainage, building structure, agricultural...