Rising stem 明杆 ; 升降式 ; 铸铝黄铜
rising stem gate valve 明杆式闸阀
non-rising stem valve 不升杆式阀 ; 暗杆阀
Non-rising stem 非升杆式 ; 暗杆 ; 阀的暗杆
rising stem valve 不升杆式阀
rising-stem double-disk parallel slide valve 明杆平行式双闸滑阀
non-rising stem wedge sluice valve 暗杆楔式闸阀
non rising stem 暗杆闸阀
Most of these threats stem from the rising risk of default by some countries in the euro zone and the knock-on damage to the European Banks that hold their bonds.
这些威胁大都源于欧元区一些国家拖欠债务的风险加剧还有来自那些持有这些国家债券的欧洲银行遭受的撞击。
The extension includes handwheel, non-rising stem, fittings and extensions to allow remote operation normally from above.
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。
This arrangement combined with the feature of a non-rising stem assures a positive seal against either steam or water.
这种结构方式具有不上升阀杆的特点,保证了对蒸汽或水都能够达到很好的密封功能。
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