121/2"HM662XAG Oilfield Drill Bit For Hard Formation Sandstone Drilling
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PDC tliet xfafar Drill Bit |
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81/2" HS952XA jiný typ a velikost PDC vrták pro vrtání ropný vrt |
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81/2" HM352XA augstas kvalitātes centrs bits ražotāja standartiem PDC Drill Bits virziena urbšanai |
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