Relier Pairs MaterialesVersion en ligne Materiales de las máquinas par ANDREA CAMARA 1 2 3 4 5 6 7 8 The book is made of paper. The sharpener is made of plastic. The lamp is made of metal. The pegs are made of plastic. The pulley is made of metal. The peg is made of wood. The computer is made of glass. The sharpener is made of metal.