Those are Pictures taken with some type of camera.
Nothing special about it.
I have no idea what the post above is talking about. NO 3D modeling software needed.
If you are asking about what software was used to DRAW the plans to Create those products then a CAD (Computer Aided Design) program was used. But long before computers came along PEOPLE drew plans with paper and pencil (sometimes Pens) for every product made, created. Even Submarines, Airplans, largest buildings in the worlds at that paericular time frame.
"I have no idea what the post above is talking about. NO 3D modeling software needed." Well, my impression was that the thread creator was talking about the product itself. Not every product you see in an advertisement - and judging by the images it looks like some advertisement - may be an actual product, but rather an animated 3D model.
To be fair, the thread creator's question is quite fuzzy and it's unclear what he meant exactly.
For one thing a computer generated 3D model would have every part shown be "In Focus". Clearly in the images the OP included show a lot of Out Of Focus areas. Some have extremely shallow depth of field. Which only happens with a larger format camera and a fast lens shot near if not all the way, fully open (at the widest aperture, smallest F/stop).
The OP wasn't very clear on what they were really asking about.
They still hven't made a reply to either yours or my post.