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Broca de diamante de doble tubo
Peu de dents en acier
bit de cinzel
81/2" HM662XA Manufactuer PDC Bit Diamond PDC Drill Bits For Rock Coal Mine Drilling Tools
BitsPDC de broca PDC multi-estágio torre
Three Anchor Bit
Kablolu elmas çekirdek Bit emdirilmiş
Không thể tách rời cánh ổn định
Jeolojik Matkap çubuk
地質鑽杆
83/4" HM652XAG professionnel Pdc foret de fournisseurs pour le perçage de grès
Bocado de broca PDC de três lâminas
Pedacito de taladro de Pdc de doble fila
Ngâm tẩm lõi mang thai Bursa cốt lõi
Kompakte Diamanttrennscheiben
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