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标题: BS EN 12516-4:2014 [打印本页]

作者: xifeng1115    时间: 2017-4-27 13:16:18     标题: BS EN 12516-4:2014

BS EN 12516-4:2014 Industrial valves. Shell design strength. Calculation method for valve shells manufactured in metallic materials other than steel

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作者: admin    时间: 2017-5-2 17:01:50

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