ABOUT CHANGSHA FRIEND STEEL CO., LTD
Changsha Friend Steel Co.,Ltd is a world-class production and service provider of submerged arc straight seam welded pipe as the first subsidiary of Friend Group. Changsha Friend Steel Co.,Ltd pays more attention to in the pipeline engineering research areas as a pioneer of China Petroleum Pipeline & Gas Pipeline Science Research Institute, Such as: the use of oil and gas pipelines, pipe welding technology innovation, high-end plumbing materials research and develop...
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