550 two-roll continuous rolling bearing unit

550 two-roll continuous rolling bearing units, 300 two-roll continuous rolling bearing units, 300 three-roll mill group, 350 three-roll mill group, rolling mill, rolling mill 450, 400 rolling unit, rolling unit 365, 550 steel rolling equipment, steel rolling equipment 250, 430 sets of rolling equipment, steel rolling equipment 530, motors, used motor, motor Shijiazhuang, Shijiazhuang AC motors, AC motors, DC motors, DC motors Shijiazhuang, 10-pole AC motor 12, DC 1500k, DC, 1000kva motor