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Ajouter une intrigue dans votre langueThis is a portrait of Professor Hristo Erinin - a big specialist in the area of ferrous metallurgy. He has made an invention with the real profit for 10 000 $ each year. The way to the reali... Tout lireThis is a portrait of Professor Hristo Erinin - a big specialist in the area of ferrous metallurgy. He has made an invention with the real profit for 10 000 $ each year. The way to the realization of his invention is really hard.This is a portrait of Professor Hristo Erinin - a big specialist in the area of ferrous metallurgy. He has made an invention with the real profit for 10 000 $ each year. The way to the realization of his invention is really hard.