91/2" HM652XAG produkuje węglika wolframu pięć skrzydełka matrycy ciała Diamond Cutter Pdc wiertła
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ogļu ieguves pdc drill bit,Website:, Tiger Rig drill bit, sertifikāts, kas ražots Ķīnā, pdc drill bit ogļu raktuves |
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121/4 inča TCI izbušite malo/umetanje Tricone Rotary Bit, vodu dobro bušenje / tricone stijena bušenje / pa bušenje bitova |
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