How are RTR handrails made/bent/cut

[G-BOAF]

Maybe a simple or stupid question, but how are handrail pieces for RTR models made?

Some handrails (e.g. loco boilers, or even Mk1 coach ends) are quite complex and precise shapes, changing direction and for locos, sometimes one-piece rails going along one side of the boiler, over the smokebox, and then along the other side.

 

How are these made in the factory? Are they stamped, bent by hand round a former?

In all the pictures of tooling development from manufacturers (e.g. Rapido and KMRC especially come to mind) , I have never seen formers for handrails, so was pondering this.