1) Hold the Argon welding certificate; 2) Mechanical installation supervision , second base, at engineering system; 3) Engineering software training (CATIA, AUTOCAD, ABAQUS, MECHANICAL, etc); 4) Gas observer in Iranian gas companies; 5) Engineer Engine of the ship.possible for me repair all part engine of the ship; 6) Study mechanical engineering in the university and research about buckling for short and long cylindrical.