... , blot cold header Z47-12/4 Multi-Station Automatic Cold Header,screw machine,cold forging header, blot ... the notch is flat.4. Take connecting rod type for the transmission of main actuating mechanism(cutting ... feeding with large disk.6. With thread rolling machine,it can carry out the one-line automated ... load with flexible in- ching,make the machine tool debugging convenient,and make the main slide ...