Hot-wire TIG overlaying welding of inner wall of oil drilling and recovering valve[J]. MW Metal Forming, 2006, (1): 33-35.
            
            
                
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                            Citation:
                        
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                        Hot-wire TIG overlaying welding of inner wall of oil drilling and recovering valve[J]. MW Metal Forming, 2006, (1): 33-35.
                        
                     | 
                
            
         
        
            
                Hot-wire TIG overlaying welding of inner wall of oil drilling and recovering valve[J]. MW Metal Forming, 2006, (1): 33-35.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        Hot-wire TIG overlaying welding of inner wall of oil drilling and recovering valve[J]. MW Metal Forming, 2006, (1): 33-35.
                        
                     |