A method of withdrawing gas form sand mould in casting process[J]. MW Metal Forming, 2008, (21): 58-59.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        A method of withdrawing gas form sand mould in casting process[J]. MW Metal Forming, 2008, (21): 58-59.
                        
                     | 
                
            
         
        
            
                A method of withdrawing gas form sand mould in casting process[J]. MW Metal Forming, 2008, (21): 58-59.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        A method of withdrawing gas form sand mould in casting process[J]. MW Metal Forming, 2008, (21): 58-59.
                        
                     |