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https://draftsman.wordpress.com/2018/10/08/revit-exterior-walls-%d8%ad%d9%88%d8%a7%d8%a6%d8%b7-%d8%ae%d8%a7%d8%b1%d8%ac%d9%8a%d8%a9/
revit exterior walls حوائط خارجية