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Date: 2014-07-02 17:11:24Petroleum geology Petroleum production Joy Global Drilling rig Drill Joy Mining Machinery Oil well P&H Mining Technology Petroleum Oilfield terminology | Rotary Blasthole Drill Product Overview Singular Focus Direct ServiceAdd to Reading ListSource URL: www.phmining.comDownload Document from Source WebsiteFile Size: 948,82 KBShare Document on Facebook |