Indandatho icima + ukufutheka. Le khasiI-Ringifudunyezwa emazingeni okushisa afanele (okuqedwa okushisa ama-850 ℃, izinga lokushisa elivuthayo 590 ℃) futhi lagcinwa isikhashana, labe selicwiliswa endaweni ephakathi nendawo.

Indandatho engu-50 c8 -Ukuthethelela ukuqeda.