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            Heavy Weight Drill Pipe(HWDP)
            
							
            Hilong Drilling Tools is committed to the quality and technological innovation of HWDP. It continues to develop HWDP that meet special environments and drilling conditions.
            
							
						
            
						
            
					
            


    
            

            



    

            
    
            
        
        
    
            

            

            


            
    
            
        
        
            
    
            

            

    
    
    
    
    
    
    
    
    
    
    

    

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