... 4.good quality; hot roling machine,(1)100,000-500,000ton wire,bar,rod material in continious, semicontinous roll production line.(2)2hi ... in continious, semicontinous roll production line. (2)2-hi, 4-hi and many roller cold and hot board rolling mill, aluminium cast ... material in continious, semicontinous roll production line. (2)3-hi, 6-hi and many roller cold , hot board rolling mill, aluminium cast ...