公司简介
Dragon Steel Pipe Manufacturing Co., Ltd. Shandong annual operating Chengdu Iron and Steel Group, Daye Group, Baotou Steel, Baoshan Iron and Steel Group, the steel group, the Tianjin seamless, Xiningte steel mills, Hengyang Steel production of seamless steel tubes , Boiler Tube, alloy tube, high-pressure hoses, fertilizers,