it depends on which backpack. most of their backpacks are made of canvas. Some have suede bottoms. They have also made leather backpacks.
Polyethylene foam
Ribosomes are made from RNA and proteins.
Polypropylene is made primarily from oil or natural gas, though it can be made from coal.
Raw materials: glucose and oxygen Products: carbon dioxide and water And, of course, energy.
Smart phones are made of metal and computer soft ware
Carbon dioxide
The raw materials that are made out of silk are polyster.
We call them raw materials. Raw materials are H2O and CO2.
There are no raw materials in it. It is a man made chemical product.
they use more natural raw materials. because made many things from natural raw materials
From raw materials and blueprints.
From raw materials and blueprints.
these things are raw materials
They are to complex to be made by hand though it is possible. Backpacks are made by machines in factories.
Raw materials
they use tractors :)) ur welcome
Made in china
The same as any other machine. Raw materials are purchased and made to specifications.