H42N立式止回閥（燃?xì)?/span>/液化氣） 上海丹歐閥門
H42N立式止回閥（燃?xì)?/span>/液化氣）該閥門閥瓣利用流體壓差和自身的重量實(shí)現(xiàn)升降，適用于大部分的罐內(nèi)垂直管路上，自動(dòng)阻止介質(zhì)逆流，保護(hù)上游設(shè)備。丹歐閥門銷售熱線：021-64934075
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