In fact, this question is easy to understand. Trademark classification is divided into 45 categories. At the same time, our industry is so vast that it is impossible for one person to apply for a trademark and close all categories. To avoid confusion, there are some similar grouping problems in the trademark classification table. For example, 30 kinds of medical nutrient solutions are similar to some products in 5 categories. Only one person can apply for the same name.
As for whether it will be confused, it depends on your product. If you scratch the ball on purpose, it will definitely be confused. It doesn't matter if different industries are different. You can look at the relevant cases of the "Great Wall" trademark. The Great Wall has several famous trademarks. But consumers are not misleading!