... ,000ton wire,bar,rod material in continious, semicontinous roll production line.(2)2hi,4hi of cold and hot boards rolling mill ... ,bar,rod material in continious, semicontinous roll production line. (2)2-hi, 4-hi and many roller cold and hot board rolling ... ,and auxiliary equipment and nonstandard apparatus such as copper, aluminium line material continuous casting and tandem rolling group.5.Small-scale ...