The industrial belt of Japan is a region that stretches along the eastern coast of Honshu Island, where many manufacturing industries are located. The primary products produced in this region are ships, electronics, and motor vehicles.
The shipbuilding industry is a major contributor to the Japanese economy, with many of the world's largest and most advanced ships being built in Japan. Japan is also known for its electronics industry, which produces a wide range of products including televisions, smartphones, and computers. In addition, Japan is home to some of the world's largest and most innovative car manufacturers, such as Toyota, Honda, and Nissan.
While Japan does produce other goods such as fertilizers, pesticides, and pharmaceutical products, the production of ships, electronics, and motor vehicles are the primary products associated with the industrial belt of Japan. Therefore, the correct answer is ships, electronics, and motor vehicles.