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Where is Graphite found?
In the Earth's Crust
Where is the mine located in the video you watched?
Germany
What is used to pulvarize the graphite ore?
water and oil
After 5 cycles what percentage of concentration does the graphite reach?
96%
In the pencil factory what is added to the graphite?
clay and water
How long does the graphite cylinder need to cure?
one week
what is the temperature in the rotary dryer
160 C
In the final step what are the pencil graphites dip in?
wax
