Answers

2014-12-10T16:08:28+05:30
The origin of the cardboard box or  folding carton .It was produced in England in 1817. It has many uses like packing of materials etc. Also it has different size and shapes such as Single Face Board , Single Wall Board ,  Double Wall Board and Triple Wall Board.
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2014-12-10T16:30:25+05:30

Cardboard is term used for paper board used for packaging. This can be made of single sheet to multiple sheets of paper or other combination like multiple corrugated layers. They are glued to gather to impart strength in particular direction. Over the years the material has been improved by use of water proof material etc. Now a days , polythene sheets are also fused to top layer to impart tear strength. Natural or synthetic fabrics/metal sheets are also sandwiched for better strength and to meet specific requirement.

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to add this ans, u took such a lot of time. about half an hour
Sorry, I am not fast in typing
its ok