加长件包括连接件和加长管件，带手轮安装。
The extension includes fittings and extension pipe with handwheel mounted.
包括带有闸板指示器的地轴承架，手轮，连接件和加长件。
Includes floorstand with gate position indicator, handwheel, fittings and extension.
加长件包括手轮，暗杆，连接件和加长件，允许在上方进行远程操作。
The extension includes handwheel, non-rising stem, fittings and extensions to allow remote operation normally from above.
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