Are you looking for China door factory?

My problem with the patio door.

How do i repair a sagging patio door in my third floor wood framed condo?

Answer:

Would you please add a bit more information to your question and reask? I believe I can help. I need to know whether you are referring to the door itself or conditions around it, like a sagging header or deteriorated jamb.

So please attach more information about your door problem.