Flexible drainage pipeline backfilling inner supporting device

The utility model relates to a flexible drainage pipeline backfill inner supporting device which comprises more than two supporting single bodies, each supporting single body comprises a trolley and at least three supporting rods borne on the trolley and used for supporting the inner wall of a pipel...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QIAO XUAN, LI JIANQING, LI LONGFEI, LIU ZELIANG, XUE QINHAN, ZHOU GUANGYUAN, LU JINKAI, WANG CHEN, LI YAN, ZHAO FUQIANG, ZHAO YUANYUAN, MA BUQING, GUO YUXIANG, LIU ZHIPAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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