... 000ton wire,bar,rod material in continious, semicontinous roll production line.2)2hi,4hi of cold and ... - 650 type steel rolling aircrew and cold bed, roll table, push steel auxiliary equipment. (4)According to ... 600,000ton wire,bar,rod material in continious, semicontinous roll production line. (2)2-hi, 4hi and ... the complete production technology scheme gear box for 3Hi cold roll mills for rebar