bonnet valve meaning in English

帽形阀
帽状阀

Tab washers for screwed bonnet valves
螺盖阀的锁紧垫板圈
Steel bolted bonnet valves described in this catalog are typically manufactured of carbon steel
本样本所描述的钢螺栓阀盖阀门主要采用碳钢制造。
Pacific cast steel bolted bonnet valves are supplied in a wide range of body / bonnet materials and trims
美国太平洋铸钢螺栓阀盖阀门可以配置多种阀体/阀盖材料和阀内件。
Material and service ? cast steel bolted bonnet valves are available in a variety of body / bonnet materials and trims
材料和应用?铸钢螺栓阀盖阀门可配置多种阀体/阀盖材料和阀内件。