Anti-theft packing box pressing cap

The utility model discloses an anti-theft packing box pressing cap. The anti-theft packing box pressing cap is structurally characterized in that a polished rod is sleeved with a packing box and a gland in sequence, a cylindrical pressing cap body is arranged in an outer sleeve, a baffle ring is ins...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG JUNTI, ZHU JINYONG, JI YANQING, ZHANG JIAYONG, WANG FULEI, LIU XIANJUN, WANG SHUHONG, MU XIAOQIANG
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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