Asayansi aku Brazil akuyang'ana momwe angasinthire zinyalala kuchokera ku nsalu zopangira nsalu kuti zikhale zopangira mafakitale azikhalidwe zama ceramic, akuyembekeza kuti onse achepetse zovuta zamakampani opanga nsalu ndikupanga zida zatsopano zopangira njerwa ndi matailosi.