Because it is necessary to check whether the mailed items are prohibited to be mailed when mailing express, you can see what it is by inquiring at the rookie station, and the relevant staff will know what the express is.

According to Article 31 of the Provisional Regulations on Express Delivery, when receiving and sending express mail, enterprises engaged in express delivery business shall inspect the internal parts in accordance with the provisions of the Postal Law of People's Republic of China (PRC) and make inspection marks. If the sender refuses the inspection, the enterprise engaged in express delivery business shall not accept and send it. Where an enterprise engaged in express delivery services is entrusted by the sender to provide express delivery services in batches for a long time, it shall sign a security agreement with the sender to clarify the security obligations of both parties.

Other regulations on express delivery.

"Provisional Regulations on Express Delivery" Article 24 Enterprises engaged in express delivery business shall standardize their operations to prevent express delivery from being damaged. Where laws and regulations have special provisions on the transportation of specific goods such as food and medicines, the sender and the enterprise engaged in express delivery business shall abide by the relevant provisions.

Twenty-fifth enterprises engaged in express delivery business shall deliver the express mail to the agreed address, the recipient or the agent designated by the recipient, and inform the recipient or agent to receive and send it in person. The consignee or agent has the right to face-to-face acceptance.

Refer to the above? China Government Network-Provisional Regulations on Express Delivery