蝶型阀 Butterfly Valves ; Butterfly valves lock lever actuator ; Butterfly valves worm gear actuator

主火蝶型阀 Main Batterfly Valve

蝶阀型雨淋阀 butterfly-valve type deluge valve

薄体型蝶阀 wafer style butterfly valve

船用中心型蝶阀 Marine center-pivoted batterfly valves

蝶阀选型样本 FARADA

船用双偏心型蝶阀 Marine duo-eccentric-pivoted butterfly valves

微阻缓闭蝶型止回阀 WZHF

型蝶阀 LT

大型蝶阀 Large Diameter Butterfly Valve