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Mtengo Wotsimikizika wa Sulfur Calcined Pitch Petroleum Coke
Pitch coke ndi mtundu wa phula lotentha kwambiri la malasha, lomwe limapangidwa pogwiritsa ntchito phula la malasha potenthetsa, kusungunula, kupopera mbewu mankhwalawa ndi kupanga njira yozizirira.Pitch coke imagawidwa m'magulu awiri: phula la malasha ndi phula la petroleum.Chomangira cha asphalt pazida zomangira chimakhala ndi phula la malasha.Mayeso opangira zida zoyeserera adawonjezedwa muchombo chosungunula phula kuti chitenthedwe ndikusungunuka.
