WEBS Teachers' Resources ebook_final

antique phone MELAMINE - Melanina THERMOSETTING / Termoestable Light, resistant, quite hard Vacuum forming Graham Bell Graham Bell plastic drawer UP - Poliester THERMOSETTING / Termoestable Strong, rigid Injection moulding Container bubble paper NATURAL RUBER - Caucho natural ELASTOMERS / Elastómero Resistant Calendering Wrapping (envolver)