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  • PetroChina Kunlun Gas Pipelines

    From 2009 to 2011, we supplied spiral welded pipes for PetroChina Kunlun Gas Laiwu Co., Ltd. and PetroChina Kunlun Gas Haerbin Zhongqing Co., Ltd. and other companies for transportation natural gas pipelines project. The total weight is 9500 tons, the specifications of them are Φ323.9、Φ406.4、Φ508、Φ610, the materials are L245—L390.

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