亚洲成色在线播放,亚洲视频手机在线观看,久久国产极品免费视频,亚洲成a人片在线观看国产

<dfn id="iaocl"></dfn>

  1. <td id="iaocl"></td>
  2. <th id="iaocl"></th>

  3. <td id="iaocl"></td>
  4. 

    1. 
    
      
    
      
        
        
        
      
    
      
    

      

    
      
        

        
      

            
      
                
      
                
      

                
                

                
      
                    
      Product features
      
                    
      The melting process of the material is optimized, so as to increase the extrusion yield and realize the extrusion of the material melt at a lower temperature.
      Good homogenization of the material is achieved by the specific shear action in the isolation gap.
      The melt plasticization process is controlled, meaning that only particles smaller than the isolation gap can enter the melt channel.

      
                
      
                
      
            
      

            
      
                
      
                    
      Extrusion screw - Pipe screw
      
                
      
                
                
      
                
      
                    
      
                        
      Material: 38 crmoala
      Process: nitriding and bimetallic
      Nitriding depth: 0.5mm-0.7mm
      Bimetallic screw: alloy layer hardness HRC>60
      Nitriding layer hardness: HV960-1100
      Alloy layer depth: 2~2.5
      Screw straightness: 0.015mm
      Chrome plated screw: Chromium layer thickness: 0.03-0.06mm
      Surface finish: 0.04Ra/um~0.08Ra/um
      Nitride brittleness: less than grade 2
      Aspect ratio: 1: (33~42)