81/2"HM662XA ansawdd uchel pwyllgor penderfyniadau cynllunio diemwnt dril tipyn dril pwyllgor penderfyniadau cynllunio i ddrilio olew
ansawdd uchel pwyllgor penderfyniadau cynllunio diemwnt dril, ddrilio olew, did dril standstone rock pwyllgor penderfyniadau cynllunio, ar gyfer gwerthu dril, wnaed yn drilio Tsieina
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kínai gyártó,Website:, olaj mező/magas minőségű/pdc bit/pdc fúrók |
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manufacturer pdc drill bit/diamond pdc drill bit/coal mine drilling tools/oil drilling bit |
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Матрицата тялото pdc свредло, масло и пробиване, добив на въглища, класиране малко диамантено пробиване |
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fabrikanten pdc drill bit/pdc drill bit/kul diamantmine boring værktøjer/olieboring bit
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H-HNS M-MATRIX 9-kesici 19 5-5 bıçak 2 il düzeyi hiyerarşik X-tek sıra G-PDC kesici yapılan Çin |
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