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91/2" HS952XA god kvalitet API Specs laveste pris råolie stål organ PDC borehoveder

stål organ bore,Website:, god kvalitet, laveste pris, petroelum borehoved, hard rock borehoved, sten boring bits, pdc borehoved, diamond borehoved


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81/2 บิตการเจาะ PDC HM962XA สว่านมือ ด้วยเมทริกซ์ร่างกายสำหรับน้ำบาดาล
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