Chris Nee
Sharing my idea, products and other interesting events.
2014年7月30日星期三
PDC Bit's Performance Comparision Sheet (Website: www.dingxinbit.com)
2014年5月30日星期五
12 1/4" DXS1954 PDC Drill Bits Applied in Iraq Oilfield
5 78″ X 6 58” DXBM1365A Bi-center PDC Drill Bit
DX bits obtains a great record in Iraq compared with NOV (REED) bits
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