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    Casting pores prevention  
      Casting pores prevention
      
        On the other hand, the surface layer and the backing layer should choose to use different sizes of silica, the surface layer of silica select S-830, S-1430 Sele……Detailed
        
			
			
        
  
  
        
    Sol precision casting  
      Sol precision casting
      
        Sol craft belonging to said Casting or Precision Casting is a cutting or no cutting of the casting process less foundry industry is a superior technology……Detailed
        
			
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