<sub id="8vuke"></sub>


<em id="8vuke"></em>


    2. 
久久精品99,国产成人高清精品免费软件,亚洲天堂免费观看,第一宅男AV导航,欧美亚一区,自拍偷拍国产,在线无码免费看黄网站,成人小说一区二区三区 





    
   
    
   
   
    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
      • 

    


    




    


    
    


  
    











主站蜘蛛池模板：
土默特右旗|
亚洲综合精品一区二区三区中文
|
91素人|
亚洲AV色香蕉一区二区蜜桃小说|
91精彩视频|
国产精品美女在线观看|
a网站免费观看|
波多野在线影院|
亚洲午夜久久久久久久久久|
精品国产福利第一区二区三区
|
夜夜撸天天操|
全球熟女AV最大导航|
免费av在线|
亚洲一区二区三区日本|
国产精品1000夫妇激情|
专栏|
天天爽天天爽天天片a|
国产高清A片|
曰韩三级无码久久探|
亚洲精品乱码久久久久久按摩|
成人精品视频一区二区不卡|
极品 在线 视频 大陆 国产|
美女视频久久久|
丁香六月婷婷综合激情欧美|
中文字幕精品人妻丝袜|
Y111111国产精品久久久|
一区二区免费|
久久国产精品久久w女人spa|
国产三级国产精品国产专区|
国产无码免费|
熟妇人妻系列|
超碰免费在线观看|
精品国产电影网久久久久婷婷|
国内视频自拍|
亚洲片在线观看|
亚洲国产VA|
少妇潮喷无码白浆水视频|
国产人人人|
男人天堂一区二区|
一区二区三区午夜|
一边摸一边叫床一边爽视频|