哪个赌场网址靠谱

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                首頁 > 產品中心 > 止回閥 > H76H/H76W/H76Y對夾蝶形止回閥
                • H76H/H76W/H76Y對夾蝶形止回閥用於純凈管路及工業、環保、水處理、高層建築給排水管路,阻止介質逆向流動之用。體積小,重量輕,結構緊湊、維修方便,閥板采用↑對偶式,在彈簧的彈性力矩下可自行速閉,因速閉作用,可防止介質倒流,閥體結構長度尺寸小,剛性好,安全方便,可用於水平垂直兩個方向安裝。
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