Types of Kelly Bars
The Kelly bar is an essential component of foundation drilling rigs, crucial for transmitting torque and pressure necessary to break and remove the formation during drilling operat
As the Chinese Lunar New Year is approaching, the 2014 Year-end banquet was held by the Ougan Company.President Robin Mao Opening SpeechGroup PhotoStaff Talent Show Some of the AwardsDinner TimePost t
Ougan Group held 2019(Chinese lunar year) commendation ceremony on Jan 17th, 2020. It was a day full of joy, harvest, luck, and honor. We had the splendid employee stage performance and the commendati