Design & manufacture of U-type small-semidiameter pipe bending machine[J]. MW Metal Forming, 2006, (6): 20-21,25.
            
            
                
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                            Citation:
                        
                     | 
                    
                        Design & manufacture of U-type small-semidiameter pipe bending machine[J]. MW Metal Forming, 2006, (6): 20-21,25.
                        
                     | 
                
            
         
        
            
                Design & manufacture of U-type small-semidiameter pipe bending machine[J]. MW Metal Forming, 2006, (6): 20-21,25.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        Design & manufacture of U-type small-semidiameter pipe bending machine[J]. MW Metal Forming, 2006, (6): 20-21,25.
                        
                     |