Device is scraped in maintenance of spring sleeve pipe

The utility model relates to a device is scraped in maintenance of spring sleeve pipe, its technical scheme is: including body, scraper mechanism, rubbish sleeve, purger, washing split -flow connector, lower clutch, the lower extreme connection lower clutch of body, the body on be equipped with scra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN MEITAO, HUANG SHOUYIN, LI ZHIQIANG, ZHAO XIANGJUN, MA XIANGZHONG, WANG QUN, DONG PINGZHI, FENG JIE, LI ZHENGHUI, TAN CHUNLEI, PAN TAIPING, BIAN XINSHE, WU XIBO, JIN ZHANWEN
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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