Oloa
Semi-ata faʻataʻitaʻi petroleum coke (sgpc)
O le SGPC ua faʻaaogaina lautele i le Suga Shieltiking, faʻavaeina, ma le eletise eletise o se tau manaia carburizer, e sili atu ma le lelei o le eletise).
Semi-claphited petroleum coke
Heinge puletoso mai carbon carbon co., Ltd, na faavaeina ia Iulai 1985. Matou te ofoina atu le tele o Carbon gaosi mai oloa laga. E masani ona tatou maua ni ituaiga eseese o kaponi oloa, pei o le RP Graphite Elerodes, HP CRAPHIVE SCRODES, Scrive Expective Sword.