kivisöetõrva töötlemissaadus, mida kasutatakse sideainena vormi- ja kärnisegudes ning süsinik- ja grafiitelektroodide valmistamisel metallurgias (vt pigi), a thick black liquid that remains after distillation of coal tar which is raw material for binding carbon anodes used for aluminum production by smelting flux electrolysis and also as binder in produc