xifeng1115 发表于 2017-4-27 13:16:18

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


admin 发表于 2017-5-2 17:01:50

谢谢您的分享,金币已奖励!
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