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9 1/2 "241.3mm tricone 드릴 비트 물 잘
121/4 "IADC 637 4 개의 콘 SPLIT-BIT 홀 오프너
잘 훈련을위한 12 1/4 "tricone 비트 차단기
190mm 7 1 / 2inch tci iadc637 비트
usd tci 석유 드릴링 tricone 비트 하드 록
부드러운 formation146mm 3 블레이드 PDC 드래그 비트
244mm 9 5/8 "TCI tricone 비트 웰 드릴링
암석 드릴링 텅스텐 카바이드 삽입 tricone 버튼 비트
밀봉 된 저널 베어링 tricone rock drill bit
강철 치형 롤러 콘이 달린 API Rock Reamer
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.