what is carbon black
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Carbon black is a material produced by the incomplete combustion of heavy petroleum products such as FCC tar, coal tar, ethylene cracking tar, with the addition of a small amount of vegetable oil.
sayandipbose:
thanks
welcome
where are you from
gangarampur, dist - dakshin dinajpur
west bengal
ok
you ?
Jhansi uttar Pradesh
ok bye next time help again
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