• <noscript id="cc8cc"><dd id="cc8cc"></dd></noscript>
    <noscript id="cc8cc"><optgroup id="cc8cc"></optgroup></noscript>
    <nav id="cc8cc"><sup id="cc8cc"></sup></nav>

    <nav id="cc8cc"><code id="cc8cc"></code></nav>
    

    • <nav id="cc8cc"><code id="cc8cc"></code></nav>
    • <small id="cc8cc"></small>
  • <small id="cc8cc"></small>
    
欧美黑人性受xxxx喷水,欧美国产日韩在线播放,国内自拍av在线免费,九九久久精品免费观看,先锋av一区二区三区,成人做爰69片免费看网站,成人午夜亚洲影视在线观看,97色偷偷色噜噜狠狠爱网站 






    
   
    
   
   
    Service Hotline
    086-577-86923687
    
   
    

    





    
	
    
    	
        
    
    
    

    

    
 
    
  
  
  
  

  

 
    

    


    
        
        
        
    
            
        
    

    









    Current Location:Home - News - Company News
    


    


    
            
    
                
            
    

    



    



        
    Features cap head comparison
    
          
    Release Time:2011-12-19  Views :  
                    
    
         
    Caps and head are very similar in appearance, as well as colleagues said today as the head of the sub-image pan. Caps and head the main difference between them on the inside diameter size, and scope. In this paper, pipe caps and head their own characteristics compared as follows:
    

     
    

    Just plug cap pipe, DN will use more than 300 head in place, if confined to strength check. Caps and head shape similar to stainless steel head with more than, cap size is relatively small and can be forged; head size is relatively little large, generally use pressed steel, pipe caps are generally used for the ends of the tube, with head in up and down (vertical devices) or parts of left and right ends (horizontal equipment) container device;
    

     
    

    Head is the inner diameter, such as 1 meter, refer to the inner diameter of the cap portion of the transition is not a requirement (unlike standard oval), general manual can only be found in the diameter and length, and a long straight edge portions .
    


    

   
    
      
         
    
            
    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：
日韩内射美女人妻一区二区三区|
国产成人精品A视频|
中国国产一级毛片视频|
东京热一精品无码av|
国产亚洲欧美另类一区二区三区|
亚洲天堂久久一区av|
国产亚洲av毛片一区二区三区|
911亚洲国产自产|
狠狠色狠狠色综合日日小说|
久久精品成人一区二区三区|
国产精品极品美女自在线|
777奇米四色成人影视色区|
丰满少妇αⅴ无码区|
亚洲AV午夜福利精品一区人妖|
欧美日韩亚洲tv不卡久久|
欧美日韩精品乱国产|
国产成人无码精品XXXX|
日韩精品国产专区一区|
亚洲国产色播AV在线|
99欧美国产国产综合视频|
国产jlzzjlzzjlzz视频免费看|
很黄很污的视频网站|
精品无码av一区二区三区|
国产成人AV在线播放不卡|
自拍99|
国产在线视频欧美亚综合|
国产AV无码专区亚洲精品网站|
色一情一乱一伦小说|
美女特级毛片在线视频|
国产成人免费无码AV|
亚洲高清一区二区三区四区|
亚洲成A V人片在线观看|
毛片一级精油按摩无码|
欧美v高清资源不卡在线播放|
影音先锋av在线资源站|
在线看一级无码毛片|
日韩内射美女人妻一区二区三区|
狠狠色噜噜狠狠狠7777米奇|
成人综合久久精品色婷婷|
国产尤物AV尤物在线看|
欧美日韩视频在线一区|