Improved drain-hose

An improved soft type drain belongs to underground discharging architectural component. A stainless steel elastic spiral coil is taken to be the holding body. A layer of unweaving cloth which is made by strongly bonding polyester fiber in high temperature is directly bonded on the outer periphery of...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	YIFEN XU
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!