hydraulic control butterfly valve
...液控蝶阀;水泵;水锤;管网 [gap=1069]Key words: control valves, multifunction, water force valves, hydraulic control butterfly valves, pump, water hammer, pipeline network..
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短语
液压遥控蝶阀
BUTTERFLY VALVE HYDRAULIC ACTUATOR
液控缓闭蝶阀
hydraulic control buffer butterfly valve
液控止回蝶阀
Hydraulic control check butterfly valves