關於「Emerson Expansion valve R22」標籤，搜尋引擎有相關的訊息討論：

Emerson TCLE Expansion Valvewww.teckhoe.com.sg › Valves › Expansion Valves[PDF] Valves, Controls and System Protectors - Emersonwww.emerson.com › documents › commercial-residential › valves-co...EMERSON 2 TON THERMO EXPANSION VALVEsurpluscityliquidators.com › products › emerson