... roling machine,(1)100,000-500,000ton wire,bar,rod material in continious, semicontinous roll production line.(2)2hi,4hi of cold and ... design the complete production technology scheme. 2. Specialize in the unit apparatus of steel rolling: (1)100,000-600,000ton wire,bar,rod ... material in continious, semicontinous roll production line. (2)2-hi, 4-hi and ...