Abakhiqizi baqondisa i-coke ye-petroleum e-graphised petroleum esezingeni eliphezulu ene-carbon ephezulu ene-sulfur ephansi, enosayizi ongu-1-5mm.
Ifektri ithengisa ngqo
Umugqa wokukhiqiza ophelele
Imishini ethuthukisiwe
Ithimba elinolwazi
Ukuphathwa kwekhwalithi okuqinile
Ukulethwa okusheshayo
Izinsizakalo ezinhle ngemuva kokuthengisa
SEBENZISA AMAKHASI











