... in detail:) 250 - 650 type steel rolling aircrew and cold bed, roll table, push steel auxiliary equipment. (4) ... material ;continuous, semi-continuous roll production line;2hi,4hi cold and hot board millaluminum rolling mill1, usageFirstly, melting the ... coiling machine,hydraulic cutter,equipment and technology lubrication system,electrical control system.Casting machine drove by DC motor,easy speed ...