Here is an autocad dwg file for 3D view of a ventilator . It is an appliance or aperture for ventilating a room or other space.
Cornices and Moldings CAD
Section of Ground floor Li
2d plan of interior patter
Furniture sectional detail
Various pattern design CAD
Front view of speaker in A
2D block of curtains in Au
Standard Locations of wall
2d fax phone cad blocks in
Furniture dwg file
Stair case detailed drawin