A2
algodón
cotton
cartón
cardboard
cristal
crystal, good quality glass
cuero
leather
lana
wool
madera
wood
oro
gold
papel
paper
piedra
stone
plata
silver
plástico
plastic
seda
silk
tela
fabric
B1
acero
steel
barro
clay
carbón
coal
cemento
cement
cobre
copper
cristal
(bottle) glass
estaño
tin
goma
rubber
hierro
iron
hojalata
tinplate
ladrillo
brick
mimbre
wicker
papel aluminio
tinfoil
pizarra
slate
roca
rock
teja
tile