高性能の四角ケリー六角形 掘削と重荷を担う

4 ドリルストリング
July 30, 2025
Video Description:
Discover the High Performance Square Kelly Hexagonal for Drilling and Weight Bearing, a core power transmission equipment in oil drilling operations. Designed for efficient torque and axial pressure transmission, this product ensures smooth drilling in land, sea, and complex formations.