Joint Stock Company and Enterprise "TOPAZ" earlier - Chisinau instrument-making factory, was founded in 1978. The "TOPAZ" enterprise, possesses powerful intellectual and production potential. It is the developer and the supplier of the difficult electronic equipment used in production of electronic regulators for aviation engines and other automatically controled systems. That includes various production complexes for bilateral electrochemical processing of shovels of engines and gas-turbine installations. Besides, we have mastered production of the multilayered flexible, rigid printed-circuit boards, which were especially demanded in modern conditions of microminiaturization and general application of nanotechnologies.