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Henan ZhongTuo Petroleum Engineering Technology Co., Ltd., Iran Branch, mainly engaged in the installation of oil, natural gas, municipal pipelines and horizontal directional crossing; pipeline pigging , pressure testing, drying, replacement, anti-corrosion and insulation , Pipeline tesing, hot tapping, line pipe trenchless lining repair, pipeline operation services, oil/gas field maintenance, chemical/physical cleaning,COW mechanical cleaning large cans of specialization company, and oilfield construction, refinery project, chemical engineering, petroleum and chemical products storage and transportation engineering, pipeline engineering, oil and gas storage project consulting, procurement contracting engineering services.