Partners Toossab Consulting Engineers Company http://www.toossab.net/en/ Tamavan Consulting Engineers Company http://www.tamavan.com/ Pazhouhab Shargh Consulting Company http://www.pazhouhabshargh.com Aria Kavand Pars Consulting Engineers http://www.aryavand.com Tiraj Machine company- Service providers Machines http://tirage-machine.ir/ Ministry of Roads & Urban Development http://www.mrud.ir/