shannxi hainaisen petroleum technology Co.Ltd

Date: 1st March 2016
83/4" HS662XA 6 lame Drill Bit, Bit PDC del corpo in acciaio, API Standard
PDC BIT, ACCIAIO CORPO DRILL BIT, 6 BIT DI TRIVELLO DI LAMA, MEDIO MORBIDO TRAPANO TRAPANO, OLIO BEN TRAPANO,
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