Every day witnessed the increasing use of welding steel elements are linked as the main technique. Using conventional welding techniques and principles of connections need to be careful that they are currently in Iran, unfortunately, precisely the cases in general "does not comply.
Inspection and supervision of the proper welding equipment, weld-on role in providing the useful life of industrial equipment such as pipelines, dams equipment, steel structures, Zkhyz·h tanks, pressure vessels, furnaces, etc. are. According to the statistics and objective evidence, failure and collapse .