Be used for anticorrosive ball valve on petroleum transportation pipeline of oil field

The utility model relates to a be used for anticorrosive ball valve on petroleum transportation pipeline of oil field, including valve body (1) and case (2), valve body (1) and case (2) between partial contact and form sealed face, valve body (1) and case (2) go up to remove all the other surface ma...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LI CHUNBING
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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