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      輸配水密封橡膠制品
      
        
      
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      O型圈
      
                    
      

      　　HONGLI is China´s leading manufacturer of O-rings for Pre-stressed Concrete Cylinder pipes, being responsive to customer requirements, we have developed various types of O-rings for drinking water and dirty-water supplying.
      　　Perform Standard：JC748
      　　Size：DN100~DN4000
      　　Material:NR/NBR
      
                
      
            
      
            
      
        
      
    
      













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