Gate and globe valves are available with a selection of wedge or disc and body configurations for different services.

闸阀和截止阀具有各种楔形闸板或阀瓣和阀体的配置，适用于不同的应用场合。

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Gate valves are offered in two designs: Parallel Disc and Flexible Wedge. Parallel Disc are position seated; Flexible Wedge are torque seated when closing.

我们提供的闸阀的结构形式具有两种：平行阀瓣和弹性楔形闸板。平行阀瓣为定位阀座密封；弹性楔形闸板在关闭时则是扭矩阀座密封。

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Results Wedge-shaped defects in the first premolar were commonly seen in elderly patients, moreover, the disc wedge and type 2 degrees were more common in the lack of damage.

结果老年牙齿楔状缺损好发于第一双尖牙，且楔缺损害以盘型、2度更为常见；

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