91/2" HS652XA čelično tijelo Pdc svrdlo za vodu pa Hard Rock i teško kamena bušenje
hard rock svrdlo, kameni bušenje bitova, pdc svrdlo, svrdlo dijamant
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Ulje dobro bitovi za bušenje / čelično tijelo PDC bita / PDC Rock Drill bitova/PDC oštrice svrdlo zalogaj/opskrba bušilica bitova PDC/tvornica opsk... |
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oil &gas exploration tricone bit,well drilling mine drilling,china wholesale, hard formation water well drilling
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H-HNS M-MATRIX 6-lõikur 16 5-5 tera 2-ringkonna hierarhiline X-ühe rea G-PDC lõikur valmistatud Hiina |
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