Replacement process of railway embedded iron seat

The invention discloses a replacement process of a railway embedded iron seat. The replacement process comprises the following steps: S1, primary drilling; a drill bit is used for punching to form a first hole; s2, secondary drilling is carried out; a drill bit is used for punching to form a second...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LU XIAOQI, LUO YUWEN, YANG GUANGFENG, YANG JUN, BIAN GUOFENG, XUE XULONG, ZHENG FEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS MACHINES FOR MAKING RAILWAYS OF ALL KINDS PERMANENT WAY PERMANENT-WAY TOOLS
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