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              Petro & Chemical Industry Equipment
            
      
            
      
              
              
            
      
          
      

      
            
            
      NHI is involved in petrochemical industry by providing oil and gas drilling equipment, including fracturing truck, sand mixing truck, manifold truck, instrument truck and auxiliaries, and also oil and gas drilling engineering technical service.
      
          
      
            
        
        
      
      
    
      
    
  
      



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