Shooting board capable of efficiently sealing with oil duct core box

The utility model provides a shooting board capable of efficiently sealing with an oil duct core box. A plurality of sand shooting vents are formed in a board body, a sealed annular grit channel is arranged on the shooting board, all the sand shooting vents are totally located in the area where the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YIN HUAYUAN, XIE XUXIANG, ZHENG YOUWEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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