Van ngành nước các loại

Van điện từ

https://nihonseiki.com/product/2%e6%96%b9%e5%90%91%e9%9b%bb%e7%a3%81%e5%bc%81/

Van màng

https://www.fujikin.co.jp/en/product/series/list.php?transactionid=6dee638b0dd3d9a2268efe68ca1e2d202e117277&view=none&category_id=11&disp_number=15&pageno=2&max_pressure=All&min_temperature=All&max_temperature=All&connection%5B%5D=0&material%5B%5D=0&cleanliness%5B%5D=0&feature%5B%5D=0