帽状阀;
Drilling die and clamp design for bonnet of ball valve
球阀副阀体法兰钻模夹具设计
A new-type electromotive force pot pressure limiting valve, consists of valve bonnet, valve body, thimble, spring, valve eye ring, valve seat, exhaust pipe sealing ring, nut, and exhaust pipe.
一种新型电压力锅限压阀,包括阀盖、阀体、顶针、弹簧、阀提手、阀座、排气管密封圈、螺母、排气管。
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