CIVIL ENGINEERING DRAWING - bie.tg.nic.in
2014-1-23u2002·u2002Civil Engineering Drawing - 6 - 1.2 DOORS: Doors are the means to provide access to the rooms of a building. A door consists of a frame and one or two shutters or leaves. Accordingly they are called as single shuttered or double shuttered door. Door frame consists of two vertical members called styles and
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