Longjiang Guanghan belongs to what unit?

This is an enterprise under the 703rd Research Institute of CSSC, which has nothing to do with the three major driving forces. Now 703 is in full swing, and the treatment is among the best in Harbin, but the steam turbine company is not sure. Is it the same preparation and treatment as 703? I need the landlord's progress check, and I can only help you get here!