中国赌城网投可靠吗

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                首頁 > 產品中心 > 安全閥 > A44Y帶扳手彈簧全啟式安全閥
                • A44Y帶扳手彈簧全啟式安全閥適用於工作溫度≤300℃的空氣、氣體、石油等♂介質的設備或管路上,作為超壓保護裝置殺氣凝聚。連接法蘭標準PN<6.4MPa按JB/T-94系列1。PN≥6.4MPa按JB/T-94系列2標準。
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