Prefabricated tiny fragments of stone, coal, etc. board that keeps off

The utility model discloses a prefabricated tiny fragments of stone, coal, etc. Board that keeps off, including integrative first main part and the second main part that forms, second main part top is provided with first main part perpendicularly, and combination department of first main part and se...

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Bibliographische Detailangaben
Hauptverfasser:	GAO JUNYING, MA NA, SUN HAIFU, WU WEIFAN, ZHAO LUQING, KOU SHENGYU, ZHANG LI
Format:	Patent
Sprache:	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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