[其他] sell drill bits

HeBei ZhanKui Drilling Company are a agent of tricone bits in China.we sale new and used tricone bits (TCI and Steel tooth ),PDC bits,drill pipe drill collar and drilling equipment for oil field,water well and mining. we also want to buy scrap tricone bits such as PDC TCI.If you can provide .please contact me email drillbits3 AT zkdrilling.com                       
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