2021 sabon siyarwa mai zafi Low Sulfur Petroleum Needle Coke / Calcined man allura coke
Siyar da masana'anta kai tsaye
Cikakken layin samarwa
Na gaba kayan aiki
Gogaggen ƙungiya
Matsakaicin gudanarwa mai inganci
Isar da gaggawa
Kyakkyawan sabis na tallace-tallace