One of China’s largest defence contractors displayed a model of a drone assembly line at a leading international defence exhibition, hinting that the firm is planning to make more of the weapons overseas.The state-run North Industries Group Corporation (Norinco) displayed the model during this year’s Eurosatory, one of the world’s largest exhibitions of army weaponry, which is being held in Paris this week.The miniature depicted the manufacture of several Norinco drones, such as the BZK-005E...