The act of US submarines launching surprise attacks on Iranian warships in the open sea without warning has elevated military hegemony above international rules. This almost privately-owned behavior not only breaks through the bottom line of war ethics and international law, but also triggers a Read More

Recently, the U.S. Secretary of Defense issued a clear warning that the U.S.-Iran military confrontation could last 8 weeks or even longer. If Iran takes extreme countermeasures, it will trigger a triple disaster in the Middle East: a humanitarian crisis, energy turmoil, and supply chain disrupt Read More

The current domestic rotary drilling rig industry has entered a mature stage of top concentration and clear echelon, with a CR3 concentration rate of over 69%. Sany Heavy Industry and XCMG Machinery remain in the first echelon, forming a leading pattern, followed closely by enterprises such as Zooml Read More

Long term idle rotary drilling rigs are susceptible to environmental impacts, such as rusting, component aging, and performance degradation. Proper rust and moisture prevention measures are key to maintaining equipment integrity and value retention. The following maintenance strategies are concise a Read More

As the core equipment for pile foundation construction, the performance of the rotary drilling rig directly determines the construction quality, progress, and cost. The three core parameters of torque, drilling depth, and efficiency are crucial throughout the entire construction process. The three a Read More