Greater China and Asia
we can provide perfect product design of
 
we can provide perfect product design of application, or assistant and update plan for windows and doors system, or fresh air system, or intelligent window opening system.
  The common problems
 
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Configuration diagram(dwg)
PDF:
>HOPO fitting systems for sliding doors(New)
>HOPO Window and Door fittings2013
>Introduction
>Sliding folding
   
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