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Hilong undertakes horizontal dev elopment in the drilling, exploitation and transmission of oil and natural gas, as well as vertical development via the industrial chain, then oilfield equipment, oil services, pipeline technology and services ,offshore engineering and new meterials five core business segments were formed. Hilong has built up a professional and strong oil service industry that integrates scientific research, production and services.The Group, headquartered in Shanghai, currently has more than dozens of production bases and business branch organizations covering major energy markets across the world.