Walter Noss is ruined trying to find malleable copper to make material for German torpedoes. One day, in a secret compartment of an old chest, he finds a document from an ancestor describing the formula for this malleable copper.
Overview：Walter Noss is ruined trying to find malleable copper to make material for German torpedoes. One day, in a secret compartment of an old chest, he finds a document from an ancestor describing the formula for this malleable copper.
