Petrotech Sun Intl Group has started its activities since 2002 with the aim of providing technical ,engineering and purchasing services inside and outside of the country, including designing and implementing various projects, and now it is a best EPC contactor in the field of construction and operation of oil and gas projects, power plants, petrochemical units, wellhead facilities, rail Way and refinery. This Company has implemented 2 desalting unit with a capacity of more than 250.000 crud oil barrel per days .