... 1)100,000-500,000ton wire,bar,rod material in continious, semicontinous roll production line.(2)2hi,4hi of cold and ... (1)100,000-600,000ton wire,bar,rod material in continious, semicontinous roll production line. (2)2-hi, 4-hi and ... (1)100,000-600,000ton wire,bar,rod material in continious, semicontinous roll production line. (2)3-hi, 6-hi and ... that were used and scrap. hot rolling production line