This is normal. Originally, you were a cargo, and you declared it twice, once for export and once for import, so you will have two customs declarations.

Answer your supplementary question:

1. Don't do normal verification after you export, but keep the relevant copies of the export declaration form and verification form, which will be used when you return the goods for import; Prove that there is no tax refund for the goods you export to write off foreign exchange;

2. The following shipments can be operated according to the new order;

3. Yes, refer to point 2.

There is nothing wrong with the customs. It's useless for you to go to the customs.

I don't know what you mean by how to operate. Does it mean the subsequent export tax rebate or something?

In fact, it is better for you to operate separately. The export operation is the same as the original export, and the import operation is in accordance with the import operation.

Besides, your statement is not particularly clear. I don't know what the terms of trade are on the import customs list. This is very important and involves how to operate in the future.