Pdc Rib Core Drill Bits For Mining Geotechnical Drilling

made in china,Website:http://www.pdcoiltool.com,pdc bit,geotechnical bit,standard,whosale,drilling bits


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卖方: QINGDAO PUHUA HEAVY INDUSTRIAL MACHINERY CO., LTD.
卖方: QINGDAO PUHUA HEAVY INDUSTRIAL MACHINERY CO., LTD.
卖方: QINGDAO PUHUA HEAVY INDUSTRIAL MACHINERY CO., LTD.
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