83/4" HM962XA lama 5 Matrix corpo alta qualità e prezzo competitivo Rock Diamond per la perforazione di Gas
Foratura, pdc bit a bit PDC, PDC trapano, matrice corpo, formazione di arenaria, olio e gas di perforazione, diamante
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PDC bit manuacturer pdc Delme bit pdc drill bit pdc drill bit ekler elmas |
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Китай доставка, добро състояние късче, стоманено тяло тренировка, добро качество, камък сондажни бита, pdc свредло, диамантено свредло |
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Peb PDC roj av drilling tom / roj & roj laum tom, cov uas siv tau rau drilling oilfield. Piv nrog rau cov khoom steel lub cev, kev mob hauv matrix ... |
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Produkt PDC Wiertła do wiercenia w kierunku |
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الصين مصنع الماس pdc مثقاب |
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