A real-world production model isn’t made with Blender Catherine, but cad/cam. Cad/cam does not work with topology but with technical drawings. It means front/top/side views. Cad/cam makes those views into a 3D model. This file is given to whatever machine that will make the object. I’m afraid you’re at the wrong forum for this.
The best case scenario for Blender is that you can have it 3D printed.
In every object you model you will have poles like that, there is no way around it and there is nothing wrong with it either.
I have made many drawings for a laser machine in my life.
This is a way your object can be made :
- First you make the drawing of the flat plate with the shape and the holes.
- You tell the computer how many pieces you need.
- The computers calculates the position of all those pieces on a standard steel plate for example : 2 m x 1 m.
- This information is given to a computer guided laser machine.
- This machine takes the needed plate out of the supply and starts cutting all the pieces.
- Those lasered pieces go to somebody who grinds the edges smooth.
- After that, those pieces are given to the bender who bends the flat object into his ‘V’ press into an angle of 90°
- When all is done the thing is galvanized.
Looking at the edges of the piece in your reference, I don’t this your object is lasered but pressed-out and then bent.