Diamond anchor bit
Diamond two-wing bit 42
Diamond composite bit PDC bit
Diamond closed bit 94
Diamond closed bit
Diamond PDC bit
High efficiency bit - coal bit
High efficiency combination drill 1
High efficiency combination bit
High efficiency screw drill pipe matching bit 76-f18
PDC bit
Tel：13376353979
钻 杆：13932963512
钻 头：13376353979
Email：2011890901@qq.com
Add：Linqing City, Shandong Province, China
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