Here is the description for the drain details . It is a channel or pipe carrying off surplus liquid, especially rainwater or liquid waste.
wall air chamber building
Wall construction with col
Roof plan and lateral elev
Construction detail dwg fi
Construction view of diffe
Details of a constructive
Ceiling plan with construc
Wooden facade detail dwg f
Triple corinthian arch
Drainage plan detail dwg f
Overflow box plant plan an
Detail of supporting beam