American frits are kept under the staging of the alpine house whilst those from Central Asia are allowed to become dry.
2
Frit thunbergi Another of the Chinese frit thunbergi Another of the Chinese frits of which there have been forms in cultivation for a very long time is Frit thunbergii.
3
Vitreous enamel frits The formulation of the development of the specialized glasses known as vitreous enamel frits.