<abbr id="cpbl9"></abbr>
    • <big id="cpbl9"></big>
    

      <i id="cpbl9"></i>
      
国产又黄又爽又刺激的免费网址,成人国产精品免费视频,日本无遮挡边做边爱边摸,福利所第一导航福利,欧美日韩国产一区二区三区不卡,午夜福利理论片在线观看,中文色码中文在线,亚洲浮力影院久久久久久 






      
   
      
   
   
      Service Hotline
      086-577-86923687
      
   
      

      





      
	
      
    	
        
      
    
      

      

      
 
      
  
  
  
  

  

 
      

      


      
        
        
        
      
            
        
      

      









      Current Location:Home - News - Industry News
      


      


      
            
      
                
            
      

      



      



        
      Head types and production methods
      
          
      Release Time:2011-11-23  Views :  
                    
      
         
      Category Head
      

       
      

      Head Material can be divided into: plastic, stainless steel seal top, head products are mostly male, cone shell, adjustable sections, flat lid and tightening the mouth. Wherein the convex head (sometimes referred to by the shape classification) comprising: a hemispherical head, oval head, dished head and a spherical cap-shaped head.
      

      Head of manufacturing methods
      

      a) Small head: the overall shape;
      

      b) large and medium-sized head: first splicing molding - the most widely used, mainly for the requirements of the standard in terms of it;
      

      c) large head: because of factors such as transport and open file request to split forming, after welding together.
      


      

   
      
      
         
      
            
      Key Words : 封頭
      
            
        
      
        
      
      
     
        
   
      
  
   
      
        
      Products
      
        
      

         
      
         
          
      
		    
      Elliptical head
      
		    
      Elliptical head
      
	    
      
                
            
          
      
		    
      Butterfly head
      
		    
      Butterfly head
      
	    
      
                
            
          
      
		    
      Spherical head spin edge
      
		    
      Spherical head spin edge
      
	    
      
                
            
          
      
		    
      Flat Head
      
		    
      Flat Head
      
	    
      
                
            
          
      
		    
      Spherical head
      
		    
      Spherical head
      
	    
      
                
            
          
      
		    
      Bow bottom head
      
		    
      Bow bottom head
      
	    
      
                
            
          
      
		    
      Conical head
      
		    
      Conical head
      
	    
      
                
            
          
      
		    
      Spherical cap shaped head
      
		    
      Spherical cap shaped head
      
	    
      
                
            
          
      
		    
      Insulation panel
      
		    
      Insulation panel
      
	    
      
                
            
          
      
		    
      Expansion Joints
      
		    
      Expansion Joints
      
	    
      
                
            
          
      
		    
      Jacket (cylinder) rotation side
      
		    
      Jacket (cylinder) rotation side
      
	    
      
                
            
          
      
		    
      Manhole flange
      
		    
      Manhole flange
      
	    
      
                
            
         
      
         
    
      



  
   
      
   
   
   
   
   
   

      








      



      
  
      
    
      
      NAVIGATION
    
      
    
  
      

  
      
    

    
      
      
      
      
        Wenzhou Shangshang Metal Products Co., Ltd. 
      
        Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
      
        Tel : 086-577-86923687 85981288    Fax : 086-577-86913687
      
        All Rights Reserved © 2016 Wenzhou Shangshang Metal Products Co., Ltd    Zhejiang ICP No. 08,005,782
        
      
      

      

        
	
      • Follow Us
        Follow Us
        •