HDD Machine Industry: According to the forecast of the American Interstate Natural Gas Association (INGAA), in the past two decades (2015-2035), oil and gas midstream infrastructure in the United States and Canada (mainly including: oil and gas pipelines, receiving stations, compression facilities, processing facilities, storage Transportation facilities, etc.) construction investment will reach 546.9 billion US dollars, an average of between 225.3 billion US dollars per year, of which oil and gas pipelines and branch pipeline construction accounted for about 30%.
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