... 活塞式阀;柱塞式阀plunger valve 活塞式减压阀Piston reducing valve 减速阀Deceleration valves ...
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... 双联弹簧式安全阀 Duplex safety valve 活塞式减压阀 Piston reducing vakve 薄膜式减压阀 Diaphragm reducing valve ...
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短语
活塞式减压阀壳体
shell of piston pressure reducing values
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