Gusaba:
Imashini imwe itwara umuvuduko mwinshi gusya umuzingo wabugenewe mbere yo gusya clinkers ya sima, imyanda ya minerval, ibyuma byuma nibindi nibindi
granules ntoya, kugirango ultra-kumenagura amabuye y'agaciro (amabuye y'icyuma, amabuye ya manganese, ubutare bw'umuringa, amabuye y'agaciro ya zinc, amabuye ya vanadium n'abandi) na
gusya amabuye y'agaciro atari ubutare (agatsiko k'amakara, feldspar, nephe-umurongo, dolomite, hekeste, quartz, nibindi) mo ifu.