Futures:
Rapid removal of cuttings; High penetration rate, especially in resistant rock formation;
Easy soil and groundwater sampling during drilling;
Possible to measure yield estimate at selected depth in the formation;
Advantageous in unconsolidated formations with a high risk of caving.
ODEX90-ODEX320
Symmetric Casing Drilling System 108mm-406mm
Concentric casing system with block, with wings 168mm-508mm显示更多
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