industrial factory 3d model

Large realistic late-20th-century pharmaceutical factory complex designed as a detailed modular 3D environment. The main structure is a wide, multi-section industrial building with several connected wings, intersecting corridors and different functional areas rather than one simple rectangular warehouse. Two-story architecture with white concrete upper walls and a dark faded blue lower section, realistic industrial proportions and construction. The exterior should include a large recognizable main entrance, multiple secondary entrances, loading bay doors, warehouse doors, large rectangular industrial windows, emergency exits, metal staircases, maintenance platforms, ventilation systems, exhaust units, external pipes, electrical boxes, utility panels, drainage systems, roof machinery, support beams and realistic industrial structural details. Include subtle aging such as faded paint, small areas of dirt, minor rust and worn concrete, while keeping the building believable and functional