... , 500, 600mm AKO's architectural terracotta is a new curtain wall material1. Environment-FriendlyNature clay selected carefully and hollow construction designed ... Germany and Italy. Each performance index of AKO terracotta facade system meets and exceeds European standards.AKO's Colors available: coffee ... products test report 300mm Terracotta Facade, Terracotta Plate, Lightweight Curtain Wall Material