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121/4HS662XA 中國優質鑽石 Pdc 鑽頭在優質軟到軟地層中

在中國,品質優良,金剛石 pdc 鑽頭,煤炭開採和大壩施工,這鑽頭


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Кому: shannxi hainaisen petroleum technology Co.Ltd
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ja' ma'alob broca tricone bits, bit u kóoniko'ob chokoj leti' carburo tungsteno insertar bits leti'e' rodillo cono broca, china, fábrica
Ko ar fábrica xi hño ar tsa̲ ne productiva, HAINAISEN ge 'na ya ndu'mi fabricantes rod ya taladro geológico ar espiral Ntxinä. Hogu̲ntso̲ho̲ barra ...
gamintojas pdc gręžimo bit/diamond pdc gręžimo bit/anglių kasykla gręžimo įrankiai/naftos gręžimo šiek tiek Website:
하드 록 드릴 비트, 비트, pdc 드릴 비트 다이아몬드 드릴 비트를 시추 하는 돌
Dengan pabrik profesional dan produktif,Website:, HAINAISEN adalah salah satu Cina pdc multi-tahap menara bor bitspdc produsen terkemuka. Selamat d...
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