Amvik eBook Solutions

Precast reinforced and prestressed concrete frames provide a high strength, stable, durable and robust solution for any multi-storey structure, and are widely r

Discusses the properties and physical characteristics of precious and semi-precious stones, including directions for selecting, grinding, polishing, and carving

Excerpt from The Art of the Lapidary The upper part of a brilliant is called the crown or bezel and the lower part is known as the pavilion, the line separating