Coal industry ball valve

The utility model provides a coal industry ball valve, valve body include first valve body and the second valve body that is located first valve body both ends, are provided with the through -hole of intercommunication outside and first valve body inner chamber on the first valve body, and through -...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YU YINGJIU, BAO ZHANGLAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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