Cross and Vanessa battle in their Mechsuits for the next ten minutes, and because they didn't have any Magitek Amplifiers, they both get easily exhausted. This is because Mechsuits were made of modern technology. Sebastian had designed the Mechsuits and had given the blueprints to Nobita so he can produce them in the Domain Company.
The Domain Company had already built modern automated machinery to produce the Mechsuits. And the material used was imported from China. The electronic vehicles, had rechargeable batteries that were built in Japan, but the minerals used for the batteries especially Cobalt, were mostly imported from Chinese companies. And even the missile launchers and weaponry attached to the Mechsuits were also imported from China.
