Ductile iron pipe is a ductile iron pipe dn200, is an alloy of iron, carbon and silicon. Ductile iron is spheroidal graphite form, usually graphite size is 6-7 200 ductile iron pipe, cast pipe on the quality requirements of the ball for the 1-3 grade level control (ball rate ≥80%), thus mechanical properties of the material itself has been good improvement, with the nature of ductile iron pipe, the properties of steel. Annealed ductile iron pipe, the microstructure of ferrite and pearlite, good mechanical properties. DN1200-1600mm centrifugal ductile iron pipe technology and equipment through the National Machinery Bureau of new products and new technology achievement appraisal; DN1800-2600mm large diameter ductile iron pipe project was listed as a national technology industry demonstration projects; epoxy ceramic-lined ductile Cast iron pipe through scientific and technological achievements of the Ministry of Construction to assess the various technical indicators have reached the United States inspection standards, bulk exports to fill the gap; centrifugal ductile iron pipe, ductile iron pipe Taian, by virtue of Liaocheng virtue Pipe Industry Co., Ltd . Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!