1. After filling out the form, if it is necessary to prove or authenticate the signature, you can indicate the date and place and the name or identity information of the signer below the signature, and ask the signer to sign beside the indicated content in person for confirmation.

2. After the signature is completed, fold the document into an envelope, indicate the recipient's name, address, zip code and other information, and affix a stamp. If you need to ensure the safety of letters, you can choose professional express delivery or postal delivery.