If it is domestic, the variety of copper is 10+00 =50 RMB, and then many people do it. And all kinds of crazy candy. Now the biggest variety of agricultural products made of soybean meal should be rebar. Our country is a big iron and steel country, and there are quite a few people involved in making rebar. Not many people in our country do international futures, most of which are international gold. People who do crude oil foreign exchange have also started to increase their holdings of index futures. The biggest is Hong Kong.