1. If it is an untreated crab, tie the crab with a string first.

2. Put the bundled crabs into the foam box directly.

3. Fix with soft filler.

4, packed in a paper box, remember to leave a vent.

5. If it is a treated crab.

6. Put the ice cubes and crabs in a plastic bag and seal them.

7. Put it in and pack it directly.

8, and put heat insulation material inside.