This busy hub houses more than 100 companies that research, develop, manufacture, and market robotic technologies and equipment. Many build specialized bots of all shapes that can do practical tasks, such as transporting heavy loads or inspecting sewage pipes. 

Today, however, things are mostly for show. Meters away from where parents and children are queued up to buy the robotic dog, two staffers teach youngsters how to make a quadrupedal robot walk up a flight of stairs. Farther along, a tense battle breaks out between two remote-controlled robots firing water beads at each other, as boys and girls cheer them on from around a temporary ring. (A staffer declares the duel a draw.)

Showcases like this are important, because they invite the public to experience robots up close. Some of China’s most prominent robotics companies are building humanoids. These machines “can free people from physical work and mundane chores,” says Yang Duan, a product manager at DexForce, which is at the carnival exhibiting a model that can make coffee. A few booths down, a pair of robotic arms attempts to fold a basket of T-shirts.