UJ41H、UJ41Y、UJ41W柱塞截止阀

UJ41H-16C​柱塞截止阀上海首龙【TC品牌】

UZ41H金属密封柱塞式闸阀

UJ941H、U941SM电动柱塞阀

U44SM、UJ44H角式柱塞阀

U41M法兰式柱塞阀

UZ41SM、UZ41H柱塞闸阀

UJ11SM、UJ11H内螺纹连接柱塞阀

U46SM平衡式柱塞阀

HSFJ41H、HSFZ41H-PPL活塞阀

U45SM、U45H直流式柱塞阀

UJ41SM、UJ41H美标 API柱塞阀