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              Coal Mine Machine
            
      
            
      
              
              
            
      
          
      

      
            
            
      NHI has open pit coal mine machinery and underground coal mine machinery, mainly include excavating machinery and coal mining machinery, including cantilever excavator and electric haulage coal shearer. 
      
          
      
            
        
        
      
      
    
      
    
  
      



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