121/4 инч 2015 Hotsale TCI Tricone малко & стомана зъб Tricone малко & Tricone рок бит
2015 Hotsale TCI Tricone битов & стомана зъб Tricone малко, Tricone рок малко, сертифицирани tricone малко
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PDC svrdlo / matrica tijelo pdc bita/dijamant pdc svrdlo |
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Petroleum proceduru bitova nafte platformi proceduru bitni rok bitni visokog kvaliteta dijamant bušenje bitova pravca bušenje |
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Wysoka wydajność/PDC / wiertła bity/olej dobrze pdc bit/diament nieco /water dobrze hard rocka |
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Dengan kilang yang profesional dan produktif,Website:, HAINAISEN adalah salah satu China talian wayar kelambu diamond teras bit Pengeluar terkemuka... |
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1,Suit for drilling medium to medium-hard formations.
2,Evolute asymmetrical blade cutter design and balanced bit load so that bit whirl is preven... |
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