斗罗大陆樱花动漫最新章节_斗罗大陆樱花动漫无弹窗 斗罗大陆樱花动漫最新章节_斗罗大陆樱花动漫无弹窗 ,管家后宫学园无修版最新章节_管家后宫学园无修版最新章节 管家后宫学园无修版最新章节_管家后宫学园无修版最新章节 ,无限资源w国产大片最新章节_无限资源w国产大片最新章节 无限资源w国产大片最新章节_无限资源w国产大片最新章节

Home > About Hilong > Hilong Business
Business and Geographic Coverage

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.