4hi aluminum cold roll mill 1.rich shape 2.best after-sale service 3.various roller machine 4hi ... ,000-600,000ton wire,bar,rod material in continious, semicontinous roll production line. (2)2-hi, 4-hi and many roller ... ,000-600,000ton wire,bar,rod material in continious, semicontinous roll production line. (2)3-hi, 6-hi and many roller ...