UA41SM暗桿柱塞閥
UZ41H金屬硬密封美標柱塞閥
UJ41W高壓柱塞截止閥
UZ41SM柱塞閘閥
BUJ41H保溫柱塞截止閥
UJ41H/Y金屬密封柱塞閥
U41SM鑄鐵柱塞閥
HSFJ法蘭連接可調(diào)節(jié)活塞閥
U11H內(nèi)螺紋柱塞閥
UJ41H鑄鋼柱塞式截止閥
U43SM三通柱塞閥
U44SM角式柱塞閥
U45SM直流式柱塞閥
UJ941H電動柱塞閥