The products classification: plate and strip cold rolling products, plate and strip processing products. By introducing technology, TYHI has co-manufactured several sets of cold strip rolling mills and finishing equipment, including continuous pickling line, silicon steel strip heat treatment line, Φ1700mm 4-roll reversible cold rolling line, 6-roll 4-stand cold rolling line, skin pass mill, recoiling unit, color coating mill, packing machine and transportation chain and other complete sets of cold rolling equipment.