Научно-популярный блог о самых интересных научных исследованиях и достижениях. Метеорит с марсианскими бактериями вновь в центре внимания. Почему-то многие думают, что кондиционер забирает свежий воздух с улицы и охлаждает его. Однако, хотя кондиционеры и генерируют прохладу, но обеспечить приток свежего в.

Welcome to Prostone, a company with over 40 years experience in the stone industry, and founded on the principles of delivering an extensive range of exceptional products together with a friendly, personal and professional service to all our clients. We recognise that choosing the right supplier is one of the most important decisions our clients will make and we appreciate the responsibility that comes with that decision. We have many customers who view our products and services as a crucial element to e.

Quality, variety, service and depth of inventory have been the foundation of our success. ProStone is the premier source for unique and exotic stone selections from around the world. As a result of our procurement experience and unique industry relationships, we can offer timely product delivery and accurate color representation.