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                熱門(mén)點(diǎn)擊：合金彎頭 | 3D彎頭 | 大型法蘭 | 板式平焊法蘭 | 不銹鋼彎頭 | 中頻彎管
                

                

                
  
                
    
    
  
                
  
                
    
                
      
                
        
          
          
          
          
          
          
          
        
      
                
    
                
    
                
      
      
                
        
                 碳鋼大小頭
          
                日期：2011-03-03 16:01:02【點(diǎn)擊：198】
                
        
                
        
                大小頭材質(zhì)包括不銹鋼大小頭(304304l316316l),合金鋼,碳鋼大小頭,大小頭20號鋼q234q345等.大小頭標準:國標...
                
      
                
        
                 同心異徑管
          
                日期：2011-03-03 15:59:21【點(diǎn)擊：121】
                
        
                
        
                同心異徑管尺寸允許偏差應符合表4.2.2-3的規定.異徑管也叫大小頭,用來(lái)連接不同尺寸的管子,一般它分...
                
      
                
        
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                日期：2011-03-03 15:52:17【點(diǎn)擊：183】
                
        
                
        
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