casing extraction
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Double-walled casings can be used universally, as they are designed especially for transmitting high rotational and vertical forces as created by the rotary drives and oscillators.
The casing drilling is obtained by driving a steel siding into the ground in order to protect the whole drilling operation;
Casing Drilling System<br> Size: 600-3000mm (Customize)<br> Drill Bit: 25T\B47K\Etc<br> Lead time: 15-20 working days
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