puits (1) temps (durée) (1) spectacle (1) recyclage (1) décharge (1) industrie (1) indicateur (1) verre (1) demande (offre et demande) (1) ville (1) substance chimique (1) Area (1) Identification (1) Antiquities, Prehistoric (1) Area (1) Origin (1) Windows (1) Time (1) Proportion (1) Prehistoric peoples (1) Industries (1) Identification (1) Glass trade (1) Glass containers (1) Glass (1) Evidence (1) Cities and towns (1) Baths (1) Average (1) Identification (1)