91/2" HS952XA de bună calitate API Specificatii cel mai mic pret petrol din oţel corp PDC burghie

corpul din oţel de gaurit,Website:, de bună calitate, preţ mai mic, petroelum masina de gaurit biţi, hard rock de gaurit biţi, piatră de foraj biţi, bit de gaurit pdc, diamant burghiu biţi

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