The intraday trading of copper and gold is unilateral.
Six thousand can be used as rebar, soybean meal, corn, wheat and indica rice.
No one told you the specific handling fee. You can negotiate with the broker when you open an account. You can consult several futures companies for comparison. If it is a retail investor, the price difference is generally small.
If you want 6000 yuan, don't think too much at first. Only a few varieties can be made, and only one hand can be opened at a time, and there are about twenty transactions back and forth. If it is really big in the future, you can also negotiate to modify the handling fee.