1, circular seal
Is the most common seal, representing the meaning of quarantine. Usually, there is a detailed date on the seal. You can check the quarantine date and slaughter place of pork.
2. Roller seal
This is an animal quarantine seal, which means it has been tested by an animal quarantine station, so it is stamped with a roller seal, which is usually very long.
3. Triangle seal
This seal has the word "high temperature", which means that after high temperature treatment, it can only be sold at a specified time and in a specific place. If you see raw meat sealed at high temperature in the market, never buy it.
4. Rectangular seal
This seal means that meat can be processed into "edible oil", but it cannot be sold directly in the market.
5.x-shaped seal
The word "destroy" is on the X-shaped seal. It shows that this kind of meat has serious problems, and it is strictly forbidden to circulate and sell in any form, even if it is refined industrial oil, it must be destroyed.