Heating weighted lever

The utility model discloses a heating weighted lever, including the weighted lever body, the weighted lever body has an inner chamber, sets up heating device in the inner chamber. Heating device is including the heating pipe and heating filler of arranging weighted lever body inner chamber simultane...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YANG WEIHUA, YUE XIAOHUA, LI QIPENG, LI YOUQUAN, GAO ANBANG, XUE YUANZHEN, XU LE, GU HUILIANG, GUO JIANFU, ZHANG KUIXIANG
Format:	Patent
Sprache:	chi ; 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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