DHDZ forgings (Shanxi Donghuang Wind Power Flange Manufacturing Co.,Ltd)designs and manufactures flanges & forgings that deliver maximum efficiency, durability and reliability for the Oil & Gas industry as well as a wide range of industrial applications, including machinery manufacturing, petrochemicals, and Pipelines and Marine forging industry. In 2010, DHDZ moved its marketing center to Shanghai, the largest city in China. Relying on the advantages of Shanghai as an international metropolis in shipping, finance, science and innovation, talent and other aspects, DHDZ is committed to providing global customers with faster corresponding speed, higher product quality, better price and better service!