needle valve
短语词组
- needle measuring valve 针形流量测定闸阀
- NEEDLE GLOBE VALVE 针型阀;针形截止阀
- needle plug valve 针阀;针状阀
- needle e valve 针阀;针形阀
- needle control valve 针阀控制阀
- needle e valve seat 针阀座
- needle -valve nozzle 针阀式喷嘴
- needle type valve 针形阀;针阀
- Needle -Valve 针阀式 返回 needle valve