認證專利

web-logo-ilac.jpg    web-logo-iso.jpg

web-logo-ce.jpg    web-logo-taf.jpg

web-logo-rohs.jpg    web-logo-ex.jpg


yuden-invention-patent-i633292-icon_zh-tw_.jpgyuden-invention-patent-i614510-icon_zh-tw_.jpg
                     風洞裝置專利公報-I633292
yuden-utility-model-patent-m515042-icon_zh-tw_.jpgyuden-utility-model-patent-m515670-icon_zh-tw_.jpg
yuden-utility-model-patent-m515671-icon_zh-tw_.jpg