關於「Emerson Expansion valve R404A」標籤，搜尋引擎有相關的訊息討論：

[PDF] Valves, Controls and System Protectors - Emersonwww.emerson.com › documents › commercial-residential › valves-co...[PDF] Table of Contents - Emersonwww.emerson.com › documents › flow-controls-catalog-en-1286944EMERSON TX VALVE EXT FLARE - R404A - Stareast Internationalwww