I drew this from direct observation.
Started by drawing the structure (with attention to foreshortening):
Then I added brightness values.
To create metal texture, I used contrast (in brightness values):
The object itself has hard edges, but the cast shadows have soft edges.
This is part of my guide on drawing realistic textures.
You can visit my guide here: https://ranartblog.com/how-to-draw-texture.html
To see the equipment I use, you are welcome to visit my guide and review for drawing materials: https://ranartblog.com/blogarticle18.html
I hope you like it. If you have any question, feel free to ask.
Ran
Website: https://ranartblog.com/
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