China Industrial wastewater treatment technology conference was held in Beijing on June 8^th 2011. Numbers of water-treatment technology companies and their clients published their researching papers during this conference. In the paper named of "application of precoat filter on condensate wastewater treatment", CNPC Urumqi Petrochemical Company stated the characteristics of Polyfilm Condensate Oil & Iron Removal System developed by our company as well as its application on removing oil and iron in condensate wastewater treatment.