... rebar,round bar ,flat bar and angle bar etc 3.with two or more rollers Gongyi Hengxu Machinery Manufacturing Co., Ltd ... cold rolling mill such as bar production line, cold rolling two ribs three level steel, silicon steel, tin steel, section steel ... of complete line3.Powerful working team and technology support4.Cooperated with Best China Metallurgical Design Institute5.Excellent user achievement and ...