Whole materials which we deals with are reliable as those materials are produced by the special steel manufacturers whose quality has been approved as the best in the world and are controlled by Hansung's owned QC system. By long reliable relationship with domestic leading companies of the relevant industries enable us to meet exact delivery of quality products and materials.     Hansung provides immediate, exact advice any-time any-where and gives various services to find customers’ demands before they inquire and to respond to the customers’ needs.