Kelly Bar Advantage:
1. All kelly rods are made of high-strength alloy seamless steel pipes.
2. All inner key plates adopt integral forging, high strength and good wear resistance.
3. The lock and the drive shell adopt high-strength forged wear-resistant plates.
4. A reinforcing ring is installed at the bottom of the terminal to prevent cracking.
5. Our driving section is built by ourselves.
6. High-strength, high-wear-resistant alloy steel forged square head.
7. High-strength wear-resistant running water plate and high-strength flexible spring.
