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        Processing all kinds of mechanical equipment parts for customers , Parts adopted 6061 Aluminum alloy material   The material has good corrosion resistance 、 Toughness is widely used in automatic mechanical parts 、 Precision machining 、 Mould manufacturing 、 Electronic and precision instruments, etc 。 Process of tooling parts CNC Rough machining 、 Mill  ... 
     
 
      
      
   
 
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        Precision mechanical parts are inseparable from today's life , Almost everywhere 。 If you have  Machining of mechanical parts , Or processing of non-standard parts , Some problems or current  Precision machining  Factory  Services not available , Welcome to Shenzhen anytime HCH Limited precision machinery  ... 
     
 
      
      
   
 
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       1: What is cast iron ? Answer : Carbon content greater than 2.11% It's called cast iron 。2: What kinds of cast iron can be divided into ? Answer : White cast iron 、 Gray cast iron 、 Ductile iron 、 Alloy cast iron 、 Malleable iron 3: What are the simple identification methods of iron and steel ? Answer : Spark identification 、 ... 
     
 
      
      
   
 
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       1: What are the physical properties of metals ? Answer : Including density 、 Melting point 、 Thermal expansion 、 Conductivity and thermal conductivity 。2: What is called  Melting point ? Answer : Is the temperature at which a metal changes from a solid to a liquid 。3: What is the chemical properties of metals ? Answer : Metal material in the room  ... 
     
 
      
      
   
 
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       1: What is pattern ? Answer : Drawing that can accurately express the shape, size and technical requirements of an object 。2: What is projection ? Answer : Is a group of rays through the object to a predetermined plane to get the graphic method 。3: Classification of projection method ? Answer : Can be divided into centers  ... 
     
 
      
      
   
   
   
  
  
  
     
     
    
    
 
  
  
 
   
   
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