The thinking of heat exchange tube and tube-plate joint welding qualification and re-assessed procedure[J]. MW Metal Forming, 2009, (22): 67-69.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        The thinking of heat exchange tube and tube-plate joint welding qualification and re-assessed procedure[J]. MW Metal Forming, 2009, (22): 67-69.
                        
                     | 
                
            
         
        
            
                The thinking of heat exchange tube and tube-plate joint welding qualification and re-assessed procedure[J]. MW Metal Forming, 2009, (22): 67-69.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        The thinking of heat exchange tube and tube-plate joint welding qualification and re-assessed procedure[J]. MW Metal Forming, 2009, (22): 67-69.
                        
                     |