Tabriz metro thermite rail welding Sales and Installation of 100 Complete Glued Insulated joints 6 Perforated in the 5th Metro Line Improvement Project of Tehran - Karaj Piping operations (drilling and intubation) of the general warehouses of the Customs of West Tehran Implementation of 440 seam of welds in the subway project of Tehran Metro Line 7 by PLA60 method Implementation of 335 Seam of Welds in Tehran Project Line 7 Metro Line Project by PLA60 Method Maintenance of shiraz metro 1st line Switch installation and welding of Northeast railway track Substruction & asphalting of paksan company Maintenance of Fars Province railway track with length of 576 km Construction of leading & unloading Platform of Paksan company Laying the Secondary railway track of paksan company