X14XX14X压力表旋塞阀

X14TX14T铜芯内螺纹三通旋塞阀

X41FX41F美标蜗轮旋塞阀

BX43WBX43W二通保温旋塞阀

U43SMU43SM双柱三通柱塞阀

U45SMU45SM直流式柱塞阀

U44SMU44SM角式柱塞阀

BU41SBU41S保温柱塞阀

U41SFU41SF美标API柱塞阀

UJ41HUJ41H柱塞截止阀

HGU45HHGU45H柱塞式放料阀

UZ41SMUZ41SM柱塞闸阀