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