.

121/4" HM952XA de pous de petroli PDC trepant mica Gas ben PDC que descoratja mica mica PDC

perforació carbó, broques de roca, sèrie Broques diamant perforació poc, mica eina de poder


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至: shannxi hainaisen petroleum technology Co.Ltd
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matricos kūno pdc grąžtą,Website:, naftos gręžinių gręžimo, anglies kasyklų, reitingą tiek deimantų gręžimo
Kiina valmistaja diamond pdc poranterä
PDC ビット、PDC のドリルビット、マトリックス体、砂岩形成、石油およびガス掘削、ダイヤモンドの掘削、pdc ビット
ПДЦ буши бита, рударске машине, карбид битова, нафтно поље ПДЦ буши мало, високо квалитета пдц процедуру битну матрицу тело
Yüksek kaliteli pdc matkap bit /Original tedarikçi petrol kuyusu PDC Bit PDC matris vücut elmas yağı /tungsten carbide PDC matkap BIT
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