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      国产蝌蚪视频一区二区三区,91网站在线免费观看,国产精品无码永久在线观看,AV天堂中AV世界中文在线播放
      


    

    
      

                
      

                    

                    
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					PERFO

				
      

				
      

				
				Mining

                
				Metallurgy

                
				Chemical

                
				Metal Processing

                
				Environment

                
				Public Works

                
				Building

                
				Intelligent Equipment

                
				New Energy

                
				Digitalization and Intelligentization

                

				
      

	  

			
      



			
      

				
				
				
      

				
      Copper Smelter for Baiyin Nonferrous Group
      

			
      

            
      

            

            
      

      Flash furnace+Baiyin furnace+PS converter+anode furnace+tankhouse，200kt/a+200kt/a  cathode copper, put into production.
      First prize of Gansu Provincial Award for Science & Technology Progress.
      

			

		
      

		

		

		
      

	
      

    

    

    

     

    

    
      

    

    

    
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