Why is cardboard used in packaging eggs?

or:Why is cardboard used in packaging eggs?or:The only reason I have for this is, it is a cost effective solution which saves your cost.or:It is a ch

or:Why is cardboard used in packaging eggs?


or:The only reason I have for this is, it is a cost effective solution which saves your cost.


or:It is a cheap but effective way to package , protect eggs and easy made it.

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