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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
Key Words: XCMG Rotary Drilling Rig, Drilling Tools, Kelly Bar.Shanghai Pudong International Airport is a major aviation hub of East Asia, occupying a 40-square-kilometre (10,000-acre) site. The airpo