NOV's two main predecessors, Oilwell Supply and National Supply, were founded in 1862 and 1893, respectively. These two companies manufactured and distributed pumps and derricks. In 1930, acquired Oilwell Supply. In 1958, merged with National Supply. In 1987, National Supply merged with USS Oilwell to become "National Oilwell". Varco was founded as Abegg and Reinhold Company by Walter Abegg and Baldwin Reinhold i.
[pdf] Our company is going international. As a professional manufacturer of drilling equipment, we can supply high quality crawler drilling machine, hydraulic drilling machine. JK Drilling has established a mature and complete after-sales service team, which can provide strong support to customers at home and. .
The service team consists of professionally trained and qualified maintenance personnel, who have rich rig knowledge and are good at solving various problems. Now no. .
As mentioned earlier, JK Drilling's "Professional Consulting Service System" includes pre-sale, mid-sale and after-sale services. It is centered around a hotline, based on a computer website, supported by service stations throughout China, and.
[pdf] Our company is going international. As a professional manufacturer of drilling equipment, we can supply high quality crawler drilling machine, hydraulic drilling machine. JK Drilling has established a m.
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