Auger drill machine carbide pick

The utility model provides an auger drill machine carbide pick, including tooth portion and conical stalk portion, tooth portion includes sphere top, first cone, second cone and third cone that from the top down connected gradually, be connected with the transition cylinder between tooth portion and...

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Bibliographische Detailangaben
Hauptverfasser:	PENG YUGAN, SUN ZHONGLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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