Here is an autocad dwg file for details of drain . a channel or pipe carrying off surplus liquid, especially rainwater or liquid waste.
Construction detail layout
Block system in first pla
Framing plan with construc
Masonry wall camposteria d
Roof slab detail for PRO o
Construction plan detail d
Top view layout plan and I
Breaking pressure chamber
Detail of structure of alc
Detail installation suppor
Beam section detail dwg fi
Construction detail design