I discovered the Schumann Professional Stove, then certe, it costs 45 on Amazon for this model, it is a little more expensive than the model Pradel but at least we know where it's coming! The surface of the stove is Schumann German design and is Greblon Stonehenge which one can find plenty of information on the internet.
When comparing the two stoves, Schumann model is heavier and its coating looks better "worked" as Pradel.
I can not give my opinion on the length, but at least for now I can only recommend a model Professional Schumann rather than Pradel Excellence!