... . Through 20 years of hard work, the company which was set up in 1987, has three subsidiary factories. The fixed assets of ... -equipped, including 36 pickling lines, 88 two-roller mills, 7 set of 850, 700, 500 and 450 four-roll tandem mill ... finishing, high-speed sliver separator, transverse cutting machine and cogging down machine. Under the hydraulic pressure, the company uses computers to ...