This sounds like a very specialized chemical, so it will be harder for you to find. Cabot Corporation makes many fuel cell and electrochemistry related components. Sigma-Aldrich is a good place to start for many chemical goods. You might also try a company that makes filters, as carbon is a very common material used in filtering and purification systems.
A seam
The best place to find cheap terry cloth bathrobes is Amazon. It offers very reasonable prices and discounts on the terry cloth bathrobes. The Macy's also carry the terry cloth bathrobes.
In any place can get by buying carbon.
place it in cement
The Reaper Cloth can be bought in the Battle Resort for 32BP. This is the only place you can obtain a Reaper Cloth.
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Seem
there are three place carbon can produce is oxygen,hyangen,carbon
Perhaps you mean laundry
to avoid friction
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