We,the company "Concern Sigma-opt"work without intermediaries, providing all the products directly from manufacturers with whom we have an agreement. Since we are working directly with manufacturers and, accordingly, we are available for many prices. Cooperating with our company, you get in the shortest time high quality products at a competitive cost. All offered products meet all necessary standards kachestva.Nasha company was founded in 2002 in Voronezh. During this time we have become a ...