Translation of "Seladas" in English

Também existem câmaras de cobre seladas

there are also sealed copper chambers

Havia sempre a secção selada. Alguém se lembra dessas secções seladas?

There was always the sealed section. Anybody remember those sealed sections?

Certifique-se de que todas as caixas foram bem seladas antes da entrega.

Make sure all the boxes are well sealed before they're delivered.