Foundation kelly bar for sany rotary drilling rig with length 9~14m
| OEM/ODM | Both |
| Material | Q345B /Q460D / 35CrMo With Special Heat Treatment /27SiMn |
| Manufacture Process | Robot Welding ,Gas Shielded welding , Manual DC Welding |
| Tailored | Round /Square |
Specification
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Due to space limitations, not all product details are displayed. For details, please consult Cathy Lee, WhatsApp+8613311085686