cc523pate 发表于 2017-7-26 21:48:07

ISO 13347-1:2004 Industrial fans — Determination of fan sound power levels

ISO 13347-1:2004 Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 1: General overview


admin 发表于 2017-7-28 12:07:42

谢谢您的分享,金币已奖励!

damingcool 发表于 2017-7-31 09:40:41

谢谢楼主的分享！！！:):)
页: [1]
查看完整版本: ISO 13347-1:2004 Industrial fans — Determination of fan sound power levels