Pumping unit

The utility model discloses a pumping unit. A swing arm is arranged at the top of a main bracket through a rotating shaft, a chute is arranged at the upper part of the swing arm, a fixed retaining rack is arranged at the tail of the swing arm, a fixed rubber block is arranged at the front end of the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG MAOLIN, XIAO QINGBO, MING DEFU, WANG YONGSHENG, JI CHENG, GUO SHASHA, FANG YUAN, DOU XUEFENG, DONG YUE, DUAN MINGFU, WANG YANSHENG, WANG HUAILONG
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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