这种阀门应该是黄铜阀体，不锈钢阀杆和弹簧。
Valve shall have a brass body and stainless steel stem and spring.
标准配置为机加工黄铜结构，镀铬镍阀体，乙丙橡胶止回阀瓣总成和丁钠橡胶密封，不锈钢弹簧和压力板。
Machined brass construction, chrome nickel plated body, EPR rubber check disc assemblies and Buna 'n' seals, stainless steel springs and pressure plates are standard.
艺术家发现这在他祖父的后院大黄蜂又到美化它用黄铜齿轮及配件，弹簧张力和拨号。
The artist found this bumblebee in his grandfather's back yard and went on to embellish it using brass gears and parts, a tension spring, and dial.
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