Y44H君正Y44H波纹管减压阀

YG43H君正YG43H高灵敏度蒸汽减压阀

Y43X君正Y43X比例式减压阀

200P君正200P黄铜减压阀

YZ11X君正YZ11X直接作用支管减压阀

Y45H君正Y45H杠杆式蒸汽减压阀

Y13H君正Y13H内螺纹蒸汽减压阀

Y43H君正Y43H先导活塞式蒸汽减压阀

YK43F君正YK43F先导活塞式气体减压阀

Y42X君正Y42X水、空气减压阀