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83 /4 " ХС662XА 6 ламела процедуру бита, челично тијело ПДЦ бита, АПИ стандарду |
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13 3/4" HM652XAG pisau 5 baris tunggal matriks tubuh minyak Diamond Pdc Drill Bits |
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91/2"HS662XG Steel Body Pdc Bit, Pdc Bits For Well Drilling |
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