... weld them. 4. Vertical RollComposition: consists of vertical roll and its base. Lead screw drives vertical roll to adjust width, left ... , consists of 1#,2#,3#,4#,5#,6# roll and its stand, base.9. Front BridgeFunction: base of all equipment before ... medium: recommend to use the anti-abrade hydraulic oil, YB-N46Medium temperature: normal temperature: 35-60 0C, when the temperature below 15 0C or exceed ...