Based on the modeling method, design feature and manufacture feature of cross wedge rolling tool are founded.

并且根据该建模方法，建立了楔横轧模具的设计特征和制造特征。

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This article gives a brief description of a special tool for assembling and disassembling of seal rings in the wedge-shaped gate valve for oil (gas) well-head assembly.

本文简要地介绍了装拆采油(气)井口楔形闸密封圈的一种专用工具。

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