12 1/4" HS652XA tubuh baja Pdc Diamond bit ukuran API sumur minyak Pdc Drill Bit
baja tubuh,Website:, pdc drill bit, bor berlian, 5 pisau bor, bor baris tunggal, batu pasir pengeboran
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With professional and productive factory,Website:, HAINAISEN is one of the leading China steel tooth bit manufacturers. Welcome to wholesale steel ... |
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