Device for collection theftproof is prevented weighing down and alarm function in well head of an organic whole

The utility model discloses a device for collection theftproof is prevented weighing down and alarm function in well head of an organic whole prevents weighing down and alarm function in the wellhead assembly of an organic whole, including earthing device, the last apron of installing of earthing de...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LEI SONGSHAN
Format:	Patent
Sprache:	eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
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