1. Metal square cans: including iron, aluminum, tin and other metal square cans. It has simple structure and good fresh-keeping effect.
2. Plastic square jars: mainly made of PE, PP and other plastic materials. Cheap and convenient, but has poor freshness.
3. Glass square jar: Glass is corrosion-resistant and has good air-tightness, but it is fragile and difficult to transport.
4. Composite material square can: such as metal liner + plastic shell. Comprehensive advantages of each material.
5. Square jar with lid: Equipped with a twist lid or pressure lid, which is easy to open.
6. Vacuum square can: It can maintain the internal vacuum state and extend the shelf life.
7. Conjoined square tanks: Two or more square tanks are connected together to save space.
8. Combined square tank: Multiple small square tanks are used together.
9. Customized square cans: Customize size, material, printing, etc. as needed.
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