two roll mill 1.ISO9001&BV 2.for rebar,round bar ,flat bar and angle bar etc 3.with two or more rollers Gongyi Hengxu Machinery Manufacturing Co., Ltd are a professional factory integrating design and manufacture of rolling mill and engaging in producing all kinds of hot & cold rolling mill such as bar production line, cold rolling two ribs three level steel, silicon steel, tin steel, section ...