Multi-disc swing foot valve
... 型号 Type Model 旋启多瓣式 Multi-disc swing foot valve 旋启式 Swing check valve ...
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短语
旋启多瓣式止回阀
Multi-disc swing foot valve
;
multi-disc swing check valve
;
Multi-discng foot valve
多瓣旋启式止回阀
Multi-disc swing check valve