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Handan Zhengda Steel Pipe Group Co.,Ltd.("ZHENG DA PIPE" in Chinese for short,and "ZDP" in English for short) as the top 3 steel pipe manufacturer in China,the annual production more than 10 million tons,is one of the ten supported enterprise by Handan city goverbment, one of the top 100 enterprises in Hebei province,Leading Enterprise of Hebei Industrial Cluster,one of the top 500 manufacturers in China, one of the top 500 private enterprises in China,the national high and new tech enterprise,observe contr...
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