... to operation Pipe Making Machine 1:Use rolling force and centrifugal force. 2:Concrete Pipe Making Machine, Cement Pipe Making Machine,SZ-2000 Concrete Pipe Making Machine, Cement Pipe Making Machine, Concrete Pipe MachineTypeSZ800x2000SZ1200x2000SZ1650x2000SZ2000x2000Pipe Diameter ... features:1.Easy to maintain and operate2.Can making all kinds of cement-pipe, diameter from 300mm to 2600mm