Composite tooth

The utility model discloses a composite tooth. The composite tooth comprises a tooth body and a cone-spheroid diamond layer. The tooth body comprises a spherical top, a frustum-shaped part, a bearing transition part, a cylinder, a guiding transition part and a guiding body. The guiding transition pa...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QIN LEI, XU SANPING
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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