國(guó)標(biāo)波紋管截止閥技術(shù)規(guī)范Technical specifications
結(jié)構(gòu)形式Structure formtion
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BB-BG-OS&Y
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驅(qū)動(dòng)方式Driving maner
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手動(dòng)hand-operated
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電動(dòng)electric
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設(shè)計(jì)標(biāo)準(zhǔn) design standard
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GB12235
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結(jié)構(gòu)長(zhǎng)度 face to face
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GB12221
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連接法蘭 flanged ends
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GB9113、JB79、HG20596
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試驗(yàn)和檢驗(yàn) test&inspection
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JB/T 9092、GB/T13927
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