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  • Hanging rocks: scale or fail? | Engineer Live

    Scaling involves the removal of dangerous, hanging rocks before they fall due to some unplanned action. Maurice Jones reports

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  • Heavy equipment - Wikipedia

    Heavy equipment refers to heavy-duty vehicles, specially designed for executing construction tasks, most frequently ones involving earthwork operations.They are also known as heavy machines, heavy trucks, construction equipment, engineering equipment, heavy vehicles, or heavy hydraulics.

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  • List of Approved Items - Electrical: Directorate General Of ...

    Government of India. S.No. Coal/Oil. Approval No. Equipment/Apparatus in brief. Applicant's name

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  • vertical tube expander - Rock Roadheader Tunneling Machine ...

    vertical tube expander. We are the manufacturer of coal mining machine,roadheader,coal loader,tunnel mucking loader,backfilling machine,concerte pumping machine and so on. vertical tube expander manufacturer, supplier.

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