... 速渡检测装置 speed detector 速启阀 QOV; quick-opening valve 塑料鲍尔环 plastic Pall ring ...
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短语
速启阀门
quick-opening gate ale
;
quick-opening gate valve
;
quick opening gate valve
;
opening gate valve
快速开启冲击阀
quick opening shock valve
快速启闭闸阀
Quick open-and-close gate valve