... 旋启多瓣式止回阀 multi-disc swing foot valve 阀室式活塞泵(美) valve pot type piston pump 薄膜式降低压力阀 diaphragm reducing valve ...
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valve plate type piston pump 阀板式活塞泵 ; 闸板式活塞泵 valve pot type piston pump 阀箱式活塞泵 valve box type piston pump 阀室式活塞泵 ; 阀箱式活塞泵 ..
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