Manual hole digging pile operation device

The utility model relates to a engineering construction technology field is a manual hole digging pile operation device particularly, including central work platform and backplate, central work platform by last steel sheet, down steel sheet, backplate and flute profile steel forms, accompany flute p...

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Bibliographische Detailangaben
Hauptverfasser:	WEI JIAN, NIU ZILONG, CHE LIANZHI, JIAO XIANTAO, ZHOU RUCHENG
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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