Here is the description for the drain details . It is a channel or pipe carrying off surplus liquid, especially rainwater or liquid waste.
Construction plan dwg file
Stair elevation detail dwg
BTS room construction deta
Details of a garden roof c
Roof planning detail dwg f
Foundation plan of turkey
Construction detail dwg fi
Detail of constructive scr
Foundation section detail
Wall section design drawin
Steel structural framing d
Ceiling plan with construc