rotary drilling rig - Manufacturers, Suppliers, Factory From China
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On February 2nd, Ougan presented Annual Gala Dinner 2018 which is one of the highlights of the Ougan’s calendar.It’s an evening of celebrating our fabulous achievement and honoring those whose signifi
North America’s largest construction trade show, “CONEXPO-CON/AGG2020,” was held in Las Vegas from March10-13.As a global strategic partner of XCMG and representative XCMG Foundation Machinery in Nort
How to Judge the Quality of Core Barrel for Foundation Piling?
Core barrels are designed for challenging drilling tasks, such as cutting through hard rock and steel-reinforced concrete. When standard