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83/4" HS642XA API و ISO فولاد بدن PDC بیت مته برای حفاری چاه نفت

PDC مته بیت فولاد بدن بیت 6 تیغه کمی تمرین متوسط تمرین نرم بیت، روغن خوب تمرین بیت,


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Cu fabrica de profesionist şi productiv,Website:, HAINAISEN este unul dintre lider China anvelope pdc corpul gaurit biţi producatori. Bine ati veni...
Ammatillinen ja tuottava tehdas HAINAISEN on yksi johtavista Kiina painiketta vähän valmistajista. Tervetuloa tukku painiketta vähän meiltä, meillä...
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PDC TALADRO BROCA ASERO KOMONGU AR PEDACITO, PEDACITO TALADRO HOJA 6, MEDIO TALADRO ZA̲THO BROCA, ASETE XI HÑO BROCA,
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