... .high efficiency 4. produce various rolling machines cold rolling mill:1.(1)100,000-500,000ton ... :) 250 - 650 type steel rolling aircrew and cold bed, roll table, push steel auxiliary equipment. ... continuous, semi-continuous roll production line;2hi,4hi cold and hot board millaluminum rolling mill1, usageFirstly, ... 1750mm7 960 × 1850mm81020 × 2000mm 4hi aluminum strip foil cold rolling mill equipment