Milling repairs include:

  • comprehensive repairs of milling units, such as shaft furnaces, converters, Doerschl furnaces, stationary and rotary anode furnaces, and rotary dryers for construction. It also includes mechanical and lining industries,
  • repairs of steam and water boilers,
  • repairs of transmission pipelines and gas pipelines (not subject to the Office of Technical Inspection assessment),
  • repairs of transmission chimneys,
  • repairs of sulphuric acid systems,
  • installation of chemical and acid resistant linings,
  • miscellaneous investment tasks related to the construction of flame retardant facilities and systems.