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25 Tons Telescoping Drilling Accessories Swivel For Kelly Bar
- Manufacturer: Kelly
25ton Swivel For kelly bar suitable for Bauer, Soilmec, Sany, XCMG Rotary Drilling Rig The Swivels of rotary drilling rig are mainly used to lift the kelly bar and drilling tools. The upper and lower joints and i...
Beijing, China
Kelly
- Manufacturer: Kelly
We can manufacture square drill rods and hexagonal drill rods as per requirements of customers. They are made of AISI 4142H/4145H forged or rolled alloy structural steel. Quenching plus tempering thermal treatmen...
Beijing, China