pipe cutting machine automatic oil hydraulic 1.feed,cutting,back in circular 2.metal max dia110mm 3.use HSS,high efficiency pipe cutting machineZT-315AV automatic hydraulic ... 250-ø350[Characteristics]1.Material feeding, clamping, cutting are automatic and recycled.2.Oil hydraulic automatic type3.Touch screen, easy operation4.Use HSS ... degrees.example 45 or 90 or others. ZT-315AV pipe cutting machine