Regional sub-structural elements of the giant dimensions of the different media and pressures suitable for pipe lines, harmless to human health, is produced in several sections, combined sealing elements used in the field. Involved in international projects require huge transfer lines specially designed, manufactured exclusively in accordance with the customer's request and mounting gaskets that meets the requirements. So far, the largest multi-piece gasket manufactured Miz 9780 mm. in diameter and consists of 28 pieces.