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zhwh0123
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樓主  發(fā)表于: 2013-12-13 14:47
請教三位五通中間封閉式電磁閥的工作過(guò)程圖
楊康
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1樓  發(fā)表于: 2013-12-13 21:26
類(lèi)似一個(gè)雙聯(lián)開(kāi)關(guān)，就多了兩個(gè)排氣孔，你可以這么理解。

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