SH30-2A engineering survey drilling rig is mainly used in the geological survey of placer gold exploration, industrial buildings, civil buildings, roads and bridges. The drilling rig has two feeding modes, impact and rotary, and customers can equip it on demand.
[pdf] Built for mobility and precise down-the-hole drilling in small to mid-scale construction sites, JC710 offers a balanced combination of compact design, efficient power transmission, and stable hole-forming performance.
[pdf] A roughneck is a person whose occupation is hard manual labor. The term applies across a number of industries, but is most commonly associated with the workers on a . The ideal of the hard-working, tough roughneck has been adopted by several sports teams who use the phrase as part of their name or logo.
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