... ,four cabinets combined into a box,Reduced footprint,Centralized Lubrication Diameter 400 Mill Compound Gear Box, hot rolling mill Steel rolling machine ... to mill rolling to steel ( need not heating furnace), Type:Diameter 250~550, supporting the use of the mill models. Speed ... /v_show/id_XMjAxMDExNDg4.html Welcome to view and guidance, thank you! Diameter 400 Mill Compound Gear Box