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      The steel structure
      
    
      
        
      
            
      
               
                    
      
	2222-03bbe

      
The steel structure
      
To the steel structure, the speed of corrosion is mainly relate to the air relative humidity and the
      
composition and quantity of pollutant in the atmosphere.
      
In order to reduce metal corrosion and extend its service life, we must adopt the spreads brushes
      
and spray finishing methods after operate the surface treatment, to form the protective film in the
      
metal surface, and cause the metal and the corrosive medium isolates, thus prevents the metal the
      
corrosion. 

      
	 

                    
            
      
        
      
    
      
    
    
      
  
      
      
      
          
      
              
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