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Heavy Industry Co., Ltd.
Taiyuan Tongze Heavy Industry Co., Ltd. 晋ICP备15004085号-1 Powered by www.300.cn
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Tongze's chief engineer made a speech in Pipe &tube Mumbai 2012 conference
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Mr. Guo Jibao, Tongze’s chief engineer made a speech <New technology & development of large size exact cross rolling steel pipe> in Pipe &tube Mumbai 2012 conference.
