Application of negative pressure gravity casting of sand mould[J]. MW Metal Forming, 2009, (13): 59-62.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        Application of negative pressure gravity casting of sand mould[J]. MW Metal Forming, 2009, (13): 59-62.
                        
                     | 
                
            
         
        
            
                Application of negative pressure gravity casting of sand mould[J]. MW Metal Forming, 2009, (13): 59-62.
            
            
                
                    | 
                        
                            Citation:
                        
                     | 
                    
                        Application of negative pressure gravity casting of sand mould[J]. MW Metal Forming, 2009, (13): 59-62.
                        
                     |