Pile hole protection device penetrating through whole construction period

The pile hole protection device penetrating through the whole construction period comprises a plurality of guardrail units, the guardrail units are connected end to end and fixed to form an annular structure, each guardrail unit comprises a steel pipe vertical rod, a first steel pipe horizontal rod,...

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Bibliographische Detailangaben
Hauptverfasser:	TAO SHUANGXI, GAO MENGHONG, NIE JIANPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FENCING FIXED CONSTRUCTIONS FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MASTS MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SWIMMING OR SPLASH BATHS OR POOLS SYSTEMS THEREOF TENTS OR CANOPIES, IN GENERAL VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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