Ibisobanuro bigufi:

Ifu ya Needle coke ni ubwoko bwiza cyane bwakozwe mu bikoresho bya karuboni. Isura yayo ni nk'iy'ifeza ifite utwenge tw'imvi hamwe n'urumuri rw'icyuma. Ugereranyije n'imiterere isa n'iy'inyundo cyangwa imeze nk'inyundo, ifite imiterere itera amavuta. Ni ibikoresho fatizo byo gukora ibicuruzwa bya karuboni byo mu rwego rwo hejuru nka electrode ifite ingufu nyinshi, imiyoboro ya karuboni n'ibikoresho bivanze. Dukurikije ibikoresho fatizo bitandukanye bikorerwamo, ifu ya karuboni ishobora kugabanywamo ibi bikurikira: ifu ya Needle coke ishingiye ku mavuta na ifu ya karuboni ishingiye ku makara. Ifu ya karuboni ikomoka ku bisigazwa bya peteroli nk'ibikoresho fatizo ishingiye ku mavuta; ifu ya karuboni ikomoka ku ibara rya karuboni kandi ibice byayo ni ifu ya karuboni ishingiye ku makara.

Karuboni idahinduka: >99%
Ivu: <0.5%
Ibintu bihindagurika: <0.5%
Sulfure: ≤0.5%
Ubushuhe: ≤0.5%
CTE: ≤1.7
Uburemere nyakuri: ≥2.12
Gupakira: imifuka minini cyangwa imifuka 25kgs mu gikapu kinini cya 1MT