How many times can dnf pet capsules seal pets, or how many times? Can the pet capsule seal the pet whose box was opened before?

1 pet capsules can only be sealed once, and only one account can buy 1 pet capsules.

Pet capsules can only seal pets whose boxes are opened, and cannot seal pets such as activities, gift packages and tasks.

Specifically, which pets can be sealed, you can open the auction house and enter: pet capsule in the box in the upper left corner, and then many options will pop up. What you have in it is something you can seal, but what you can't find in it is something you can't seal.