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            	 The SFC issued Hunan Pump IPO approval
	        
        
        
        
          
        
            
        
              15
            
        
            
        2021-12
            
        
          
        
          
        
            
        The SFC issued Hunan Pump IPO approval
            
        
            
        
            
        
          
        
        
        
              
            
        
        
            	 Hunan oil pump energy saving two main board companies ...
	        
        
        
        
          
        
            
        
              15
            
        
            
        2021-12
            
        
          
        
          
        
            
        Hunan oil pump energy saving two main board companies ...
            
        
            
        
            
        
          
        
        
        
              
            
        
        
            	 Introduction of cleaning and assembly technology...
	        
        
        
        
          
        
            
        
              15
            
        
            
        2021-12
            
        
          
        
          
        
            
        Introduction of cleaning and assembly technology...
            
        
            
        
            
        
          
        
        
        
              
            
        
        
            	 Analysis of the type and working process of the oil pump
	        
        
        
        
          
        
            
        
              15
            
        
            
        2021-12
            
        
          
        
          
        
            
        Analysis of the type and working process of the oil pump
            
        
            
        
            
        
          
        
        
        
              
            
        
        
            	 What is the difference between a high magnetic permeability ring and a low magnetic permeability ring?
	        
        
        
        
          
        
            
        
              18
            
        
            
        2021-08
            
        
          
        
          
        
            
        What is the difference between a high magnetic permeability ring and a low magnetic permeability ring?
            
        
            
        When it comes to high permeability magnetic rings, we have to say nickel-zinc ferrite magnetic rings. Why do you say that?
            
        
          
        
        
        
              
            
        
        
            	 What is the relationship between the color of the magnetic ring and the material?
	        
        
        
        
          
        
            
        
              18
            
        
            
        2021-08
            
        
          
        
          
        
            
        What is the relationship between the color of the magnetic ring and the material?
            
        
            
        The magnetic ring needs to be painted to facilitate the distinction. Generally, the iron powder core is distinguished by two colors. The commonly used ones are red/transparent, yellow/red, green/red, green/blue and yellow/white. The manganese core ring is generally painted with green. , Iron, silicon and aluminum are generally all black and so on.
            
        
          
        
        
        
              
          
        
    
        
          
					
					
        
				
        
	                	
        
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