zhaojiaoshou 发表于 2014-2-22 11:19:51

EN 50272-2 Safety Requirement for Secondary Batteries and Battery Installations


关于不间断电源安装的安全标准。


admin 发表于 2014-2-24 11:51:23

谢谢您的分享，金币已奖励！

chwnb 发表于 2015-7-17 13:26:42

thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

熱鬥的馬仔 发表于 2015-7-18 10:49:32


thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

zhangjinlang 发表于 2015-8-25 15:05:31

Thanks so much for sharing@@@@@@

zhangjinlang 发表于 2015-8-25 15:07:21

结果附件根本不是i标准文本啊。

俺没注册 发表于 2016-9-2 10:43:29

继续看看这个东西，这个里面怎么会有水质要求数据呢

Brezz 发表于 2017-5-23 11:21:12


thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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