Valve shall have a brass body and stainless steel stem and spring.

这种阀门应该是黄铜阀体，不锈钢阀杆和弹簧。

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Rugged stainless steel gate, long-life packing, stainless steel stem, corrosion resistant yoke sleeve, and heavy duty superstructure.

坚固耐用的不锈钢闸板，经久耐用的填料，不锈钢阀杆，耐腐蚀轭架轴套，重型坚固的上部结构。

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Stem material, and strive to stainless steel stem (2cr13), large diameter valves also should be embedded in the package of stainless steel valve stem.

阀杆材质，力求不锈钢阀杆(2cr13)，大口径阀门也应是不锈钢嵌包的阀杆。

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The projected losses stem principally from the dispute with the steel sub-contractor Cleveland Bridge (CBUK), which left the site last year.

BBC: SPORT | Football | New Wembley costs to rise by ?75m

DCM's woes stem largely from the station, which features giant steel arches that soar over a large train hall, and the 1, 776-foot-tall One World Trade Center.

WSJ: Steel Firm's Woes Snag World Trade Center