casing extraction
Keyword:
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
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.
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